The Boston Tea Party

The Boston Tea Party

Holiday themed simulation blogs are very de rigueur of late so I thought I’d jump on the bandwagon for both...
What’s the Fastest Way to Dry Your Hands? Simcenter FLOEFD Explains…

What’s the Fastest Way to Dry Your Hands? Simcenter FLOEFD Explains…

Find out the fastest way to dry your hands using insights gained from Simcenter FLOEFD.
How Cool is that? A 1D3D Approach to Simulating Liquid Cooling

How Cool is that? A 1D3D Approach to Simulating Liquid Cooling

The accuracy of 3D in a 1D Systems Simulation context. Breaking down barriers using 1D3D approaches.
Facebook Live Event on Tuesday July 11th – Frontloading CFD: How and Why?

Facebook Live Event on Tuesday July 11th – Frontloading CFD: How and Why?

Performing more thermo-fluids simulation, earlier in a product design process, will mitigate the risks of late stage redesign and the...
SEMI-THERM 33 – ‘A History of Commercial CFD’ Short Course

SEMI-THERM 33 – ‘A History of Commercial CFD’ Short Course

At this year’s SEMI-THERM symposium next week in San Jose, John Parry and I will be presenting a short course...
Talking CFD Podcast – Democratization, Appification and Strategy

Talking CFD Podcast – Democratization, Appification and Strategy

I had the pleasure recently to talk with Robin Knowles as part of his Talking CFD podcast series. All credit...
A Novel Approach to Reducing Heatsink Mass Whilst Preserving Thermal Performance, using FloTHERM

A Novel Approach to Reducing Heatsink Mass Whilst Preserving Thermal Performance, using FloTHERM

Heatsinking is a common method to facilitate the removal of heat from a dissipating component, thus reducing source (junction) temperature....
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 6 – Response Surface Models

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 6 – Response Surface Models

So far we’ve looked at a couple of ways to optimise the design of a heatsink to meet some quantified...
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 5 – Sequential Optimisation and Compound Cost Functions

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 5 – Sequential Optimisation and Compound Cost Functions

Sequential optimisation is an alternative optimisation strategy that can be run in FloTHERM’s Command Center module. As with response surface...
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 4 – Response Surface Inspection

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 4 – Response Surface Inspection

To recap… So far in this series we’ve: Taken a simple FloTHERM application of a component+heatsink placed on a PCB...
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 3 – Cost Function Response Surfaces

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 3 – Cost Function Response Surfaces

A design of experiments based study will provide a scatter gun type indication of how the system performs with a...
Happy Lunar New Year! – FloEFD Investigates Sky Lantern Aerodynamics

Happy Lunar New Year! – FloEFD Investigates Sky Lantern Aerodynamics

Happy Chinese new year, wishing you all prosperity, luck, health and fortune in this, the year of the Monkey! Also...
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 2 – Design of (Computational) Experiments

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 2 – Design of (Computational) Experiments

The most effective, but least efficient, method to determine an optimal combination of design parameters is to consider every single...
Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 1 – Defining a Design Space

Response Surface and Sequential Optimisation of a Heatsink Using FloTHERM. Part 1 – Defining a Design Space

Heatsinks are a very common method of aiding the transfer of heat from a source (e.g. IC die) to a...
The Appification of CFD Simulation has Started

The Appification of CFD Simulation has Started

There has been much talk about the appification of established technologies. Discussion on the appification of high-value CAE simulation seems...
Room Temperature Metal Bonding – Heralding a Revolution In IC Performance and Reliability?

Room Temperature Metal Bonding – Heralding a Revolution In IC Performance and Reliability?

A reliable electronic product is generally a cool one. In addition, one of the main limiters of non-functional performance is...
Automated Model Calibration in FloTHERM – A Future Cornerstone of Simulation Based Workflows, Today

Automated Model Calibration in FloTHERM – A Future Cornerstone of Simulation Based Workflows, Today

Available in the recently released FloTHERM V11.1 is the ability to calibrate a FloTHERM simulation model so that it matches...
Top 7 FloTHERM V11 Features – #5: Overlapping Localized Grid

Top 7 FloTHERM V11 Features – #5: Overlapping Localized Grid

A grid (mesh) defines a tessellated collection of small volumes that cover the 3D volume of space that is to...
Top 7 FloTHERM V11 Features – #4: FloMCAD Automation

Top 7 FloTHERM V11 Features – #4: FloMCAD Automation

Software can be described in two ways, what it does (functional) and how it does it (non-functional). As a software...
A FloEFD Halloween Horror Story

A FloEFD Halloween Horror Story

Picture the scene… The news channels had been reporting the disappearance of Simon Cary from the All Hallows Asylum for...
Can Cows Fly? Simcenter FLOEFD Investigates. Part 3 – Superbly Sonic

Can Cows Fly? Simcenter FLOEFD Investigates. Part 3 – Superbly Sonic

If air flows fast enough over something it can tend to lift itself up. Ask any child running with a...
Top 7 FloTHERM V11 Features – #3: FloMCAD’s New GUI

Top 7 FloTHERM V11 Features – #3: FloMCAD’s New GUI

With FloTHERM V10 we embarked on a GUI replacement program to update the GUI and user experience for all of...
Top 7 FloTHERM V11 Features – #2: FloMCAD’s Voxelize

Top 7 FloTHERM V11 Features – #2: FloMCAD’s Voxelize

The simulation of MCAD geometry is a day to day requirement for the majority of thermal design engineers, especially those...
Can Cows Fly? Simcenter FLOEFD Investigates. Part 2 – Aerocownamic Lift and Drag

Can Cows Fly? Simcenter FLOEFD Investigates. Part 2 – Aerocownamic Lift and Drag

Well of course cows can’t fly, not udder their own volition anyway. As with any body placed in an air...
Can Cows Fly? Simcenter FLOEFD Investigates. Part 1 – Only in the Mooovies

Can Cows Fly? Simcenter FLOEFD Investigates. Part 1 – Only in the Mooovies

It has been observed that cows tend to stand with their rumps facing the oncoming wind. There has been much...
Top 7 FloTHERM V11 Features – #1: Joule Heating

Top 7 FloTHERM V11 Features – #1: Joule Heating

FloTHERM V11 is now released and contains a wealth of interesting and useful features. In this blog series I’ll select...
A Couple of Other Electronics Thermal Blogs…

A Couple of Other Electronics Thermal Blogs…

Blogs are a great outlet if you are passionate about a subject. I’ve been running this blog on mentor.com for...
Organically Grown 3D Printable Heatsinks – Part 4: A Fully Automated Methodology

Organically Grown 3D Printable Heatsinks – Part 4: A Fully Automated Methodology

The additive design methodology itself is quite straightforward. It is however highly repetitive. Perform a simulation, identify a maximum temperature...
Organically Grown 3D Printable Heatsinks – Part 3: Smoothing the Edges

Organically Grown 3D Printable Heatsinks – Part 3: Smoothing the Edges

The shape of the small piece of geometry that is added so as to successively ‘relieve’ the design determines the...
Organically Grown 3D Printable Heatsinks – Part 2: Trunks and Branches

Organically Grown 3D Printable Heatsinks – Part 2: Trunks and Branches

Adrian Bejan’s Constructal Law states: “For a finite-size system to persist in time (to live), it must evolve in such...
Organically Grown 3D Printable Heatsinks – Part 1: A Simple Iterative Procedure

Organically Grown 3D Printable Heatsinks – Part 1: A Simple Iterative Procedure

This is what a typical extruded fin heatsink looks like. It’s made of metal and sits on top of IC...
The Electronics Cooling Metaphorical Drinking Game – Part Deux

The Electronics Cooling Metaphorical Drinking Game – Part Deux

With Semi-Therm 31 just a week away I thought it would be a good time to expand on the (metaphorical)...
Angry Building Melts Car with Focused Sunlight Weapon

Angry Building Melts Car with Focused Sunlight Weapon

29th August, 2012. A Jaguar XJ parked in Fenchurch Street, London, suffered melted panels between 1200 and 1400, owner Martin...
Mentor Graphics at Semi-Therm 31 – ‘Dolly the Heatsink’ and much more

Mentor Graphics at Semi-Therm 31 – ‘Dolly the Heatsink’ and much more

Semi-Therm, the world’s largest dedicated electronics thermal conference, will take place between March 15-19 at the Doubletree Hotel in San...
Engineering Love

Engineering Love

It’s National Engineer’s Week in the US this week. A similar event takes place in the UK in March. I’ve...
3D Thermal Simulation of 2D Images, a Valentine’s Love Story.

3D Thermal Simulation of 2D Images, a Valentine’s Love Story.

A full 3D thermal simulation of an electronic system requires, not surprisingly, a 3D geometric representation of the proposed design....
Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 4: ‘Wat-er’ Waste of Time

Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 4: ‘Wat-er’ Waste of Time

Energy isn’t the only thing that is wasted when dealing with hot water supply. Time is as well. The house...
Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 3: Cool-down

Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 3: Cool-down

Horror vacui, Natura abhorret vacuum, Resintenza del vacuo; from Aristotle to Galileo, it has long been known that here on...
Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 2: Warm-up

Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 2: Warm-up

Sure, most modern homes have much more advanced water heating systems than a big tank with an electric heater element....
Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 1: Pun Intended

Domestic Hot Water Heating, ‘Wat-er’ Waste of Energy. Part 1: Pun Intended

Human technical prowess relies heavily on the conversion of energy from one form to another, to meet our needs. Physiological...
If You’re Going to Lose it, You Might as Well Use it!

If You’re Going to Lose it, You Might as Well Use it!

A lot of engineering involves the management of energies, converting them from one form to another, channeling off useful work...
Thermal Bottlenecks. This is Hot, This is Why.

Thermal Bottlenecks. This is Hot, This is Why.

The term ‘thermal bottleneck’ is widely recognized, drawing from an intuitive analogy: a bottleneck restricts flow, making it harder for...
Blue LEDs. Since When is Improvement Invention?

Blue LEDs. Since When is Improvement Invention?

Lighting accounts for ~20% of the world’s total energy consumption. This is a staggering statistic. Why so much? Historically a...
Leg Hair? What a Drag

Leg Hair? What a Drag

“How thick is a leg hair” is not a question I thought I’d be posing when I woke up today....
The Electronics Cooling Metaphorical Drinking Game

The Electronics Cooling Metaphorical Drinking Game

There are a handful of quoted and re-quoted drivers, concepts and technologies in the electronics cooling industry.  Be it a...
Xilinx Patent for Critical Tj Prediction

Xilinx Patent for Critical Tj Prediction

A recently issued patent describes a process by which the critical IC temperature (junction temperature, Tj) can be determined in...
Dell Precision – Spot on Thermal Design

Dell Precision – Spot on Thermal Design

Develop 3D is a UK based Magazine and Website focussing on the technologies involved in product design. The latest copy...
Top 10 FloTHERM V10 Features – #11: Odds and Sods

Top 10 FloTHERM V10 Features – #11: Odds and Sods

A release so good it has 11 best top 10 features, very Spinal Tap. I thought I’d wrap up this...
Top 10 FloTHERM V10 Features – #10: Improved Solar Calculator

Top 10 FloTHERM V10 Features – #10: Improved Solar Calculator

Arguably the most important (and often least well characterised) parameter controlling the temperature of electronic products is their power dissipation....
Top 10 FloTHERM V10 Features – #9: Data Center Simulation

Top 10 FloTHERM V10 Features – #9: Data Center Simulation

FloVENT, FloTHERM’s sister product aimed at 3D CFD simulation of the built environment, has for many years been able to...
Top 10 FloTHERM V10 Features – #8: Thermostatic Control with Hysteresis

Top 10 FloTHERM V10 Features – #8: Thermostatic Control with Hysteresis

Electronics thermal simulation historically focussed on steady state conditions, worse case scenarios where for example a power dissipation is assumed...
Top 10 FloTHERM V10 Features – #7: Super-fast Parallel CFD Solver

Top 10 FloTHERM V10 Features – #7: Super-fast Parallel CFD Solver

I’m sure in the (far) future, product design and manufacture will just involve a big box that you can ask...
Top 10 FloTHERM V10 Features – #6: Integrated Summary Columns

Top 10 FloTHERM V10 Features – #6: Integrated Summary Columns

If there’s one word that describes electronics products it’s ‘complexity’. Actually, scratch that, that’s too generic a term. How about...
Top 10 FloTHERM V10 Features – #5: FloSCRIPT

Top 10 FloTHERM V10 Features – #5: FloSCRIPT

Flo. As far as prefixes go, I don’t know of another company that uses one so consistently for product branding,...
Top 10 FloTHERM V10 Features – #4: Updated CAD

Top 10 FloTHERM V10 Features – #4: Updated CAD

FloTHERM’s strength has always its been its robustness, founded on a simplicity of technology that we’ve tried not to compromise...
Top 10 FloTHERM V10 Features – #3: FEA Interfacing

Top 10 FloTHERM V10 Features – #3: FEA Interfacing

Temperature has always been, and will continue to be, a good enough leading indicator of product reliability. As a parameter...
Top 10 FloTHERM V10 Features – #2: Advanced Find

Top 10 FloTHERM V10 Features – #2: Advanced Find

Electronic products, and products that contain electronics, are typified by being constructed of 100s if not 1000s of individual parts....
Top 10 FloTHERM V10 Features – #1: New GUI

Top 10 FloTHERM V10 Features – #1: New GUI

FloTHERM V10 is a major release that marks 25 years as the leading electronics thermal simulation tool. This series will...
Come and Learn about the Latest Release of FloTHERM, V10

Come and Learn about the Latest Release of FloTHERM, V10

The latest release of FloTHERM, V10, is now available! It is a major release, satisfying over 40 software enhancement requests...
Heat Your Home Office for 8p (10cents) a Day. Part 5 – Putting it All Together

Heat Your Home Office for 8p (10cents) a Day. Part 5 – Putting it All Together

3D computational simulation is still a relatively young technology in the grand scheme of things, akin to the automotive industry...
Heat Your Home Office for 8p (10cents) a Day. Part 4 – Comfort Temperature

Heat Your Home Office for 8p (10cents) a Day. Part 4 – Comfort Temperature

Have you ever wondered why, after a cold winter’s night, some of your car windows are iced over whilst others...
Heat Your Home Office for 8p (10cents) a Day. Part 3a – Was Dave Right?

Heat Your Home Office for 8p (10cents) a Day. Part 3a – Was Dave Right?

It’s always nice to get some comments on your blog. When starting writing blogs about 4 years ago (2022 edit:...
Heat Your Home Office for 8p (10cents) a Day. Part 3 – It Takes Time

Heat Your Home Office for 8p (10cents) a Day. Part 3 – It Takes Time

Dylan in his original YouTube video made the point that the tea lights only burn for about 4 hours and...
Heat Your Home Office for 8p (10cents) a Day. Part 2 – Thermal Interception

Heat Your Home Office for 8p (10cents) a Day. Part 2 – Thermal Interception

We often do things that we intuitively feel are beneficial, often without realising just why. One of the beauties of...
Heat Your Home Office for 8p (10cents) a Day. Part 1 – Really?

Heat Your Home Office for 8p (10cents) a Day. Part 1 – Really?

Dylan Winter, boat owner, film maker and blogger, made a youtube video about a year ago (2022 edit: now removed as...
Happy 25th Birthday FloTHERM !

Happy 25th Birthday FloTHERM !

Late in 1988 two key employees of CHAM (Concentration Heat And Momentum Ltd.), the first commercial CFD vendor and at...
Why Not Just Shove a Heatsink on Top of it? Part 3: Pads, Vias and Undersinking

Why Not Just Shove a Heatsink on Top of it? Part 3: Pads, Vias and Undersinking

An appreciation of heat flow paths is a pre-requisite for good thermal design. If you attempt to augment heat flow...
Why Not Just Shove a Heatsink on Top of it? Part 2: Heat Flow Budgets

Why Not Just Shove a Heatsink on Top of it? Part 2: Heat Flow Budgets

Two different package styles, two very different thermal responses when a extruded plate fin heatsink is placed on each. At...
Why Not Just Shove a Heatsink on Top of it? Part 1

Why Not Just Shove a Heatsink on Top of it? Part 1

A common enough question. Heatsinks are often perceived to be the magic answer to all electronics cooling challenges. They should...
Experiment vs. Simulation, Part 5: Detailed IC Package Model Calibration Methodology

Experiment vs. Simulation, Part 5: Detailed IC Package Model Calibration Methodology

In the royal family of thermal IC package modelling types, a detailed model is King. All critical 3D geometry is...
CFD – Colourful Friday Distractions

CFD – Colourful Friday Distractions

By way of an apology for the more verbose blogs I’ve been issuing recently I’d like to present you with...
Experiment vs. Simulation, Part 4: Compact Thermal Models

Experiment vs. Simulation, Part 4: Compact Thermal Models

Electronics cooling simulation was born out of the world of CFD, rather fully conjugate heat transfer simulation where convective, radiative...
Experiment vs. Simulation, Part 3: JESD51-14

Experiment vs. Simulation, Part 3: JESD51-14

The JESD51-14 standard was published in November 2010, prepared by the  JEDEC JC-15 Committee on Thermal Characterization. It outlines a...
Experiment vs. Simulation, Part 2: TIM Thermal Conductivity

Experiment vs. Simulation, Part 2: TIM Thermal Conductivity

The temperature rise that electronic components attain in operation is due to 3 things. The power that they dissipate, the...
Experiment vs. Simulation, Part 1: Them and Us.

Experiment vs. Simulation, Part 1: Them and Us.

Before you sell it, or commission it, you want to be sure that it works. Monies have been spent on...
“Why Cartesian Grids Are Good”

“Why Cartesian Grids Are Good”

I put the title in quotes as it’s the title of a blog post by John Chawner at Pointwise who...
Where’s the Best Place to Put a Radiator in a Room? Part 5: Get a Job

Where’s the Best Place to Put a Radiator in a Room? Part 5: Get a Job

Effective use of a Computational Fluid Dynamics (CFD) simulation tool requires at least a working knowledge of fluid dynamics itself....
Where’s the Best Place to Put a Radiator in a Room? Part 4: Premature Simulation

Where’s the Best Place to Put a Radiator in a Room? Part 4: Premature Simulation

One thing the Mechanical Analysis Division is not guilty of is vendor hubris. Despite the passion we have about our...
Where’s the Best Place to Put a Radiator in a Room? Part 3: 13% Better

Where’s the Best Place to Put a Radiator in a Room? Part 3: 13% Better

Conventional wisdom has it that the best place to put a radiator in a room is under the window. However,...
Where’s the Best Place to Put a Radiator in a Room? Part 2: PMV and other TLAs

Where’s the Best Place to Put a Radiator in a Room? Part 2: PMV and other TLAs

Sometime between 40 and 100 thousand years ago humans started to wear clothes, an estimate as accurate as you’d expect...
Where’s the Best Place to Put a Radiator in a Room. Part 1: Such Things are Important

Where’s the Best Place to Put a Radiator in a Room. Part 1: Such Things are Important

With the gulf stream having shifted south and now flowing happily somewhere high over Paris, the summer weather in the...
Agile software development practices in the Mechanical Analysis Division

Agile software development practices in the Mechanical Analysis Division

From a software user’s perspective it really doesn’t matter exactly how that application was developed. A user is concerned with...
A Little Goes A Long Way (But A Lot Doesn’t Go Much Further)

A Little Goes A Long Way (But A Lot Doesn’t Go Much Further)

It has been almost 3 years since I started this blog and I hope you’ve found it as interesting as...
More Than Two Decades and Still Going Strong; FloTHERM and FloVENT V9.3 Now Released

More Than Two Decades and Still Going Strong; FloTHERM and FloVENT V9.3 Now Released

In 1989 Flomerics was the first organisation to provide application specific CFD based simulation software where all pre and post-processing...
Simulation Software So Simple Even Teenagers Can Use It

Simulation Software So Simple Even Teenagers Can Use It

The UK government has a policy for all year 10 or year 11 students to undertake a week’s work experience....
Bottlenecks and Interface Materials; Part 3 – Relieving Thermal Bottlenecks Reduce Temperatures

Bottlenecks and Interface Materials; Part 3 – Relieving Thermal Bottlenecks Reduce Temperatures

As with all good inventions, you quickly wonder how on earth you could have done without them before. Relieving thermal...
Bottlenecks and Interface Materials; Part 2 – When TIMs Go Bad

Bottlenecks and Interface Materials; Part 2 – When TIMs Go Bad

‘Bits stuck onto other bits’, a succinct definition of an electronic product, if not a product that contains electronics. Soldering...
Bridging the Simulation Supply Chain; NXP Semiconductors, a Case in Point

Bridging the Simulation Supply Chain; NXP Semiconductors, a Case in Point

By far and away the most common enquiry by someone using FloTHERM, especially at the start of their adoption, is...
Bottlenecks and Interface Materials; Part 1 – Great Thermal Bedfellows

Bottlenecks and Interface Materials; Part 1 – Great Thermal Bedfellows

Probably due to the beer fridge, I now seem to be becoming the repository of broken electronic products with an...
Emails, more Emails and Jeff Bridges

Emails, more Emails and Jeff Bridges

It’s estimated that, from a figure of 0.4% in 1995, now about 30% of the world’s population are ‘internet users’....
LEDs; The future’s bright and hot.

LEDs; The future’s bright and hot.

LED based lighting is now a very hot topic (believe me, in electronic thermal management circles that used to be...
From Megawatts to Milliwatts; sub-micron scale thermal modelling with FloTHERM

From Megawatts to Milliwatts; sub-micron scale thermal modelling with FloTHERM

Joseph Fourier led a full and interesting life. Apart from his obvious legacy of Fourier’s Law that relates the temperature...
What! All that just for that? The bonkers world of CPU cooling.

What! All that just for that? The bonkers world of CPU cooling.

My colleague Ed and I were marvelling the other day at the CPU cooling unit from one of our training...
Ho, Ho, Ho! Facebook moves to Lapland

Ho, Ho, Ho! Facebook moves to Lapland

What do you call someone who doesn’t believe in Father Christmas? A rebel without a Claus. Right, that’s that out...
All Detailed Thermal IC Package Models are Wrong… Probably

All Detailed Thermal IC Package Models are Wrong… Probably

‘Rubbish In -> Rubbish Out’ is a well accepted fact in the world of simulation. Regardless of the technical capabilities...
Underfloor Electric Heating. Part III – Penny wise, pound foolish.

Underfloor Electric Heating. Part III – Penny wise, pound foolish.

It would only have cost me an extra £170, a small extra compared to the cost of the rest of...
Underfloor Electric Heating. Part II – Infrared Thermography

Underfloor Electric Heating. Part II – Infrared Thermography

3D simulation can provide a detailed prediction of temperature and heat flux values at 10s of 1000s of points in...
Underfloor Electric Heating. Part I: In by Christmas

Underfloor Electric Heating. Part I: In by Christmas

It’s been over two years since the foundations went in for the extension we’re building on our house. In that...
Come, meet FloTHERM/VENT/EFD users, learn and enjoy!

Come, meet FloTHERM/VENT/EFD users, learn and enjoy!

As a FloTHERM, FloVENT or FloEFD user you might not realise it but you are part of a global and...
PC Overclocking and Aftermarket Modding. Part III – Power vs. Frequency?

PC Overclocking and Aftermarket Modding. Part III – Power vs. Frequency?

Thermal simulation of electronic systems using FloTHERM usually involve the definition of the 3D geometry and relevant material properties, specification...
PC Overclocking and Aftermarket Modding. Part II – Liquid Nitrogen Overclocking, How Cool is That?

PC Overclocking and Aftermarket Modding. Part II – Liquid Nitrogen Overclocking, How Cool is That?

I’m a big fan of product demonstrations. Having once been an application engineer, there’s nothing quite like the thrill of...
PC Overclocking and Aftermarket Modding. Part 1 – When Colour Matters.

PC Overclocking and Aftermarket Modding. Part 1 – When Colour Matters.

Automotive aftermarket modification has both mass appeal and a multi-million dollar turnover. Neon underbody lighting, enhanced radiator systems, aero-dynamic side...
Desktop PC with Integrated Toaster – As if!

Desktop PC with Integrated Toaster – As if!

OK, so it won’t go down in the annals of history as the best April fools ever but it had...
Thermal Design Perfection Starts with the use of FloTHERM PACK

Thermal Design Perfection Starts with the use of FloTHERM PACK

‘Plagiarism saves time’ as can be seen in the title of this blog, a nod to Tom Hausherr’s excellent blog...
We Love FloTHERM V9.2

We Love FloTHERM V9.2

FloTHERM, and its sister product FloVENT, have been going since 1989. Many in the Mechanical Analysis Division in Mentor have...
Desktop PC with Integrated Toaster –  the Future is Now

Desktop PC with Integrated Toaster – the Future is Now

The convergence of technology platforms continues apace, especially in the mobile telephony world. The world of overclockers and case modders...
Do you know the way to San Jose?

Do you know the way to San Jose?

One of the highlights of the electronics thermal management calender is the annual SEMI-THERM symposium held in sunny San Jose,...
Beer Fridge – A Case Study in Thermal Design. Part 6 – Baffles and Bottlenecks

Beer Fridge – A Case Study in Thermal Design. Part 6 – Baffles and Bottlenecks

For a blog series focused on thermal design there has been precious little design presented so far. Design is the...
FloEFD HVAC Module – Taking Built Environment CFD Simulation to the Next Level

FloEFD HVAC Module – Taking Built Environment CFD Simulation to the Next Level

The recently released FloEFD HVAC Module brings a raft of features specifically tailored to enable FloEFD to be used for...
Beer Fridge – A Case Study in Thermal Design. Part 5 – Time for a FloBEER

Beer Fridge – A Case Study in Thermal Design. Part 5 – Time for a FloBEER

All good things come to those who wait. For beer this entails a trade off between anticipation and satisfaction. If,...
Beer Fridge – A Case Study in Thermal Design. Part 4 – FloBEER

Beer Fridge – A Case Study in Thermal Design. Part 4 – FloBEER

As the ancient proverb goes; a beer fridge without beer is like X Factor, utterly pointless. You’d have thought that...
Beer Fridge – A Case Study in Thermal Design. Part 3 – Side Up or Upside Down?

Beer Fridge – A Case Study in Thermal Design. Part 3 – Side Up or Upside Down?

The futility of investigating the cooling effectiveness of any empty fridge is beginning to dawn on me, the irony of...
Beer Fridge – A Case Study in Thermal Design. Part 2 – TEC Effect

Beer Fridge – A Case Study in Thermal Design. Part 2 – TEC Effect

Beer drinkers are notoriously quiet people and as such would not want to be disturbed by the continuous hissing and...
Beer Fridge – A Case Study in Thermal Design. Part 1 – A Gift

Beer Fridge – A Case Study in Thermal Design. Part 1 – A Gift

My boss, Roland, relocated from Germany to the UK a couple of years ago and has taken to life in...
What Can You Learn When You Turn It On?

What Can You Learn When You Turn It On?

Power on an IC package, measure the resulting transient response of the junction temperature and from that infer a wealth...
We Love FloTHERM – 8 Reasons to Upgrade to V9.1

We Love FloTHERM – 8 Reasons to Upgrade to V9.1

Here at the Mechanical Analysis Department we love FloTHERM and we love developing FloTHERM to ensure it keeps up with...
On the Vilification of Smokers

On the Vilification of Smokers

On a recent trip to Japan I was surprised to find out how much their attitudes to smoking had changed....
Identifying Thermal Bottlenecks and Shortcut Opportunities – Taking Simulation to the Next Level

Identifying Thermal Bottlenecks and Shortcut Opportunities – Taking Simulation to the Next Level

Simulation has, to date, focused primarily on the prediction of an operating state that is compared to a design acceptable...
How many frogs does a horse have?

How many frogs does a horse have?

The internet is big. It’s not sentient yet, though Robert Swayer has written a compelling story of how it might...
It’s a wireless world!      No it isn’t.

It’s a wireless world! No it isn’t.

The sheer amount of innovation and discovery regarding electrical and electro-magnetic behaviour in the 19th century is staggering. From Volta’s electrical cell...
Are you using ‘Smart’ in a way I am not familiar with?

Are you using ‘Smart’ in a way I am not familiar with?

Phones are now smart apparently. This has come as quite a shock and one that I’m still trying to reconcile...
An Interview With… Clemens Lasance

An Interview With… Clemens Lasance

Every industry or industry sub-sector has its movers and shakers, its pioneers and thought leaders. These people have helped shape...
I was led to believe we’d have flying cars by now

I was led to believe we’d have flying cars by now

The rate of technological advancement over the last 150 years has changed society beyond measure. Riding the crest of this...
Red Hot Electronic Thermal Analysis?

Red Hot Electronic Thermal Analysis?

The etymology of the phrase ‘red hot’ dates back to the 14th century describing the colour attained by metal as...
The art of modelling using CFD. Part VI – Peripheral Boundary Conditions

The art of modelling using CFD. Part VI – Peripheral Boundary Conditions

This final blog in this series focuses on what is sometimes the most ethereal of CFD modelling arts, where and...
The art of modelling using CFD. Part V – Grid

The art of modelling using CFD. Part V – Grid

Any simulation technology based on an approach of subdividing a 3D model into many tessellated control volumes (e.g. the finite...
The art of modelling using CFD. Part IV – Fans

The art of modelling using CFD. Part IV – Fans

Sometimes the ability to apply artistic interpretation of your virtual product to your simulation model of it is limited or dictated (take your pick) by...
The art of modelling using CFD. Part III – TIGs

The art of modelling using CFD. Part III – TIGs

Never trust a TLA (three-letter acronym) or those who use them, unless the abbreviation provides some value in terms of...
The art of modelling using CFD. Part II – Grilles

The art of modelling using CFD. Part II – Grilles

Wiki quote: “A grille is an opening of several slits side by side in a wall or metal sheet or...
The art of modelling using CFD. Part I – What happens if you cross art with science?

The art of modelling using CFD. Part I – What happens if you cross art with science?

Considering that CFD (Computational Fluid Dynamics) is an advanced mathematical method for predicting fluid flow and heat transfer using a computational...
How much do ‘U-Value’ good thermal insulation? Part VII – “Ooo, shut that door”

How much do ‘U-Value’ good thermal insulation? Part VII – “Ooo, shut that door”

Larry Grayson’s famous high camp catchphrase would be well heeded by those wanting to ensure good thermal insulation. You can make...
“A Faster Horse” – Mentor ‘IDEAS for Mechanical’ driving product development

“A Faster Horse” – Mentor ‘IDEAS for Mechanical’ driving product development

The Mentor ‘IDEAS for Mechanical’ site allows users of FloTHERM, FloVENT, FloTHERM PCB and FloEFD to post their software enhancement requests (access...
How much do ‘U-Value’ good thermal insulation? Part VI – revenge of the radiative heat flux

How much do ‘U-Value’ good thermal insulation? Part VI – revenge of the radiative heat flux

Conduction, the transfer of heat through a solid object. Convection, the transfer of heat in moving air/fluid. Radiation, the transfer...
IC package representation is central to Electronics Cooling

IC package representation is central to Electronics Cooling

Electronics cooling involves ensuring that IC package temperatures do not exceed maximum rated values. If they do the probability of thermo-mechanical...
How much do ‘U-Value’ good thermal insulation? Part V

How much do ‘U-Value’ good thermal insulation? Part V

Why is it that when you increase a cavity air gap size beyond ~30mm is there no subsequent detrimental affect...
How much do ‘U-Value’ good thermal insulation? Part IV

How much do ‘U-Value’ good thermal insulation? Part IV

100mm block, 50mm insulation, 50mm cavity air gap then 100mm block make up an external wall that in theory comply...
How much do ‘U-Value’ good thermal insulation? Part III

How much do ‘U-Value’ good thermal insulation? Part III

As covered in the previous blog, air that sticks to the inside and outside walls offers a resistance to the...
How much do ‘U-Value’ good thermal insulation? Part II

How much do ‘U-Value’ good thermal insulation? Part II

It might well be that a single U-value is quoted, in reality though that single value describes the ease by...
How much do ‘U-Value’ good thermal insulation? Part I

How much do ‘U-Value’ good thermal insulation? Part I

I never trust a quoted value without having at least a little understanding as to what the value truly represents...
Keeping the caveman warm – HVAC blog

Keeping the caveman warm – HVAC blog

We knapped our first flints about 2,000,000 years ago and started to shelter from the elements in caves and simple...
FloVIZ, the free FloTHERM/FloVENT CFD results viewer, try it, it’s free

FloVIZ, the free FloTHERM/FloVENT CFD results viewer, try it, it’s free

Computational Fluid Dynamics, CFD, is a simulation technology that provides 3D predictions of fluid flow and heat transfer for a...
‘Heat Trees’ – taking a leaf out of natures book

‘Heat Trees’ – taking a leaf out of natures book

Heatsinks aren’t a novel energy efficient type of washing bowl, they are parts that are placed on high powered IC...
The Most Extreme CFD Model Ever Ever – Explained

The Most Extreme CFD Model Ever Ever – Explained

The ability of FloTHERM to resolve a massive disparity in geometric length scale in a single model is for me...
FloTHERM and its new XML neutral file format

FloTHERM and its new XML neutral file format

We have recently published a new xml schema and associated xml reader for FloTHERM that offers some exciting new possibilities....
The Most Extreme CFD Model Ever Ever

The Most Extreme CFD Model Ever Ever

Electronics are small and getting smaller. The world in which we live is tending to stay at the same size....
So, you want to predict component temperatures do you? Part VII

So, you want to predict component temperatures do you? Part VII

This series, despite being somewhat lengthy, is by no means a complete overview of the various methods, options and approaches...
So, you want to predict component temperatures do you? Part VI

So, you want to predict component temperatures do you? Part VI

On the sliding scale of thermal component model representation king of all is a ‘detailed’ model. A 3D definition of...
So, you want to predict component temperatures do you? Part V

So, you want to predict component temperatures do you? Part V

Like a river this blog series is slowing down due to its increased width and depth, that and a lot...
A trip to MPH and Top Gear Live

A trip to MPH and Top Gear Live

My current blog series titled “So, you want to predict component temperatures do you?” is a big chunky theme that...
So, you want to predict component temperatures do you? Part IV

So, you want to predict component temperatures do you? Part IV

Next stop on the avenue of package thermal modelling is 2 resistor CTMs (compact thermal models). Specifically Theta_jb and Theta_jc,...
So, you want to predict component temperatures do you? Part III

So, you want to predict component temperatures do you? Part III

The simplest of compact thermal models (CTMs) is a one resistor type. Of these the most widely quoted is Theta_ja...
So, you want to predict component temperatures do you? Part II

So, you want to predict component temperatures do you? Part II

Lumped block package representation makes the best use of limited available data to simulate for an ‘indication’ of case temperature....
So, you want to predict component temperatures do you? Part I

So, you want to predict component temperatures do you? Part I

Prediction of component temperatures is central to electronics cooling simulation, the management of their temperatures  is central to electronics cooling...
Underfloor Thermal Insulation; Why? Part III

Underfloor Thermal Insulation; Why? Part III

Local air temperature plays an important part in the resulting thermal comfort as would be experienced by someone occupying that...
Underfloor Thermal Insulation; Why? Part II

Underfloor Thermal Insulation; Why? Part II

In the first part of this blog I described the make up of my house extension floor ‘stack-up’, including a...
Underfloor Thermal Insulation; Why? Part I

Underfloor Thermal Insulation; Why? Part I

I’m building an extension to my house at the moment. Actually, let me qualify that; I’m doing some of the...
Is all Software Rubbish?

Is all Software Rubbish?

How can software ever be classed as being any good if vendors keep issuing new versions of it? Was V1.0...
Thermatronic Stagnation (nothing to do with male deers)

Thermatronic Stagnation (nothing to do with male deers)

Stagnation, not the land of male deer, more the tendency for something not to flow. Still brown dirty pools spring...
Fractals: Gods Artwork, Part III

Fractals: Gods Artwork, Part III

Returning to this series is simply an excuse to include the most marvellous of images that are after all simply...
Thermatrons Must Leave

Thermatrons Must Leave

Talk to a mathematician about thermodynamics and heat transfer and before long they’ll be showing you lots of weird symbols...
At the Speed of Heat

At the Speed of Heat

Many analogies exist relating heat flow to fluid flow. Oops, there’s one. A good electronics thermal design is one that...
A Load of HVAC TLAs

A Load of HVAC TLAs

As humans we’ve lived in ‘built environments’ for a very long time.  From the cave to the penthouse suite, the...
How-to: Invert your thermal model to good effect

How-to: Invert your thermal model to good effect

Thought I’d follow the previous post on this subject up with a slightly more detailed description of exactly how to...
Clogged cooling fins, a cautionary tale

Clogged cooling fins, a cautionary tale

Here’s an interesting little article about the consequences of clogged cooling (heatsink) fins. A heatsink (area extender) is fine if...
Invert your thermal model to good effect

Invert your thermal model to good effect

Electronic thermal simulations are most commonly formed by specifying a power dissipation within a package and using numerical solution techniques...
“I work with computers”

“I work with computers”

Picture the scene, a big family get together, being cornered by the latest wife of your outward going (and rather...
Fractals: Gods Artwork, Part II

Fractals: Gods Artwork, Part II

A fractal set; a set of numbers, or points, that when iterated through even the simplest of  non-linear equations do...
Fractals: Gods Artwork, Part I

Fractals: Gods Artwork, Part I

I thought I’d go a little ‘off piste’ and rabbit on about fractals for a while. In the end we’ll...
“All models are wrong, but some are useful” Part V

“All models are wrong, but some are useful” Part V

A variant on the original G. E. Box quote is:  “Remember that all models are wrong; the practical question is...
3D Electronics Cooling CFD, with FloTHERM, in Pictures

3D Electronics Cooling CFD, with FloTHERM, in Pictures

“A picture paints a thousand words”. Probably not as quickly though. Wouldn’t the world be a different place if we...
Spend some time with FlyGuy

Spend some time with FlyGuy

A nice attraction Is a welcome distraction From the work you’ve got to do. Though the time goes too fast,...
“All models are wrong, but some are useful” Part IV

“All models are wrong, but some are useful” Part IV

The penultimate issue in this series of ‘reasons why an electronics cooling model can be wrong, but hey it’s fine...
Flying

Flying

If you, like me, are not a good flyer then you might like to know that the harder you squeeze...
“All models are wrong, but some are useful” Part III

“All models are wrong, but some are useful” Part III

The next two parts in this series focus on the thermal model representations of electronic objects. The first being packages,...
“All models are wrong, but some are useful” Part II

“All models are wrong, but some are useful” Part II

So, all models are wrong, to some extent, due to various reasons. For electronic thermal simulation the main suspect is...
“All models are wrong, but some are useful” Part I

“All models are wrong, but some are useful” Part I

The original business case that David Tatchell and Harvey Rosten put forward for the formation of (what was to become)...
Welcome along!

Welcome along!

Hello and welcome along! I was told that if you blog about something that interests you then there’s a good...