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? FloEFD Investigates. Part 3 – Superbly Sonic

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

Can Cows Fly? 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? FloEFD Investigates. Part 1 - Only in the Mooovies

Can Cows Fly? 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...
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 in time...
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.

There are 475,000 Google search hits for ‘thermal bottleneck’. It’s a well recognised phrase playing on a very obvious analogy....
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 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...
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...
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...