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Mechanical Analysis Blog

22 Oct, 2014

Don Miller

In my previous blog I made the point that the increasing focus on energy efficiency means that the subject of loss coefficients remains an extremely relevant one.  If the topic were owned or regulated then these blogs would be unnecessary.  However, the fact is that non-replicable results proliferate in the literature, making it difficult for he concerned engineer to exercise ‘due diligence’ in designing

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21 Oct, 2014

Robin Bornoff Lighting accounts for ~20% of the world’s total energy consumption. This is a staggering statistic. Why so much? Historically a lot of energy had to be consumed to produce the required amount of visible light. Incandescent bulbs, where electric current is used to heat a metal filament, resulted in most of the energy being dissipated as heat. More a hot bulb than a light bulb. Even worse for a … Read More

10 Oct, 2014

Chris Murray Hi I’m Chris and I’m a Fluid Systems Engineer.  I didn’t plan on becoming one on graduating from University and didn’t really know what one did but bluffed my way through an interview and got offered a job working for Flowmaster as a support engineer.  It can be difficult to explain to friends, family and customers exactly what I do and where a tool such as Flowmaster is used … Read More

7 Oct, 2014

A Day at the Zoo

Posted by Nazita Saye

Nazita Saye Computational Fluid Dynamics (CFD) is pretty serious business. Every day it’s used in a wide range of industries around the world to optimize products for some very practical purposes. Cars? Check! Planes? Check. Medical devices, consumer electronics and power generation? Check, check and check.  But sometimes you come across things that make you giggle. And since it’s a grey and gloomy day in … Read More

6 Oct, 2014

Leg Hair? What a Drag

Posted by Robin Bornoff

Robin Bornoff “How thick is a leg hair” is not a question I thought I’d be posing when I woke up today. Reading this article about the effect of leg hair on the overall drag of a performance cyclist prompted me to investigate the physics behind this observation. For the sake of expediency I steered clear of a full body MAMIL simulation, focussing instead on just a small patch of a particularly hairy … Read More

1 Oct, 2014

Robin Bornoff There are a handful of quoted and re-quoted drivers, concepts and technologies in the electronics cooling industry.  Be it a presentation, peer reviewed paper, press release, thermal design guide or webinar the same core material keeps popping up in various guises. This is by no means a bad thing. The challenges faced when cooling electronics are clear, clearly described and need to be constantly reiterated. … Read More

30 Sep, 2014

The Demise of the ME. Hardly!

Posted by Nazita Saye

Nazita Saye It takes a lot to annoy me. I’m almost pathologically happy. You’re having a bad day? Just pop on by my desk and I’ll guarantee that you’ll leave a few minutes later with a smile. So I was a bit surprised that after reading a blog post a couple of weeks ago I found myself fuming. Not a lot can ruffle my feathers but this post irked me. No… not miffed… irked!  Since my reaction was so uncharacteristic … Read More

19 Sep, 2014

Robin Bornoff A recently issued patent describes a process by which the critical IC temperature (junction temperature, Tj) can be determined in an end user environment. A critical junction temperature is one that, should the IC temperature go beyond it, will continue to increase in a thermal runaway scenario. In other words the environment in which the IC is operating can’t get the heat out quick enough. The … Read More

18 Sep, 2014

Don Miller In this blog series I will cover the historical context which lead to the creation of Internal Flow Systems.  Covering both the motives and the methods behind the book and inevitably raises questions about the reliability of many of the other available sources of available data.  It will also make it clear that this isn’t a subject of academic interest alone; the subject of loss coefficients and system … Read More

16 Sep, 2014

Nazita Saye In my job I need to exercise a fair bit of creativity. Sometimes my ideas are readily picked up. Some require a lot of massaging and some never see the light of day… I used to take criticism of my ideas personally but not since hanging out with engineers. If there’s one thing I’ve learned from you guys is that there’s no such thing as failure – only outcomes. As Thomas Edison famously said “I … Read More

8 Sep, 2014

Dell Precision - Spot on Thermal Design

Posted by Robin Bornoff

Robin Bornoff Develop 3D is a UK based Magazine and Website focussing on the technologies involved in product design. The latest copy had a fascinating article on Dell’s Precision Workstation labs. This blog is being written on a Precision M4500 which I’ve lugged around countless airports and dumped, wearily, on numerous hotel beds. The fact that it works as well now as when I first got it a few years ago is … Read More

5 Sep, 2014

System Simulation in the Cloud

Posted by Doug Kolak

Doug Kolak Do you have an upcoming project and don’t have a tool that can handle system level thermo-fluid analysis? Are you evaluating your current simulation options to make sure they meet the needs of your business for years to come? Are you curious about new ways of solving problems of the world today in particular with the use of CFD? If you are like most engineers I speak with, the process for getting access … Read More

4 Sep, 2014

Robin Bornoff A release so good it has 11 best top 10 features, very Spinal Tap. I thought I’d wrap up this series with a list of more minor, but imo, very useful features and finish off with some words on cultural idioms. FloTHERM V10.0 and V10.1 together satisfy about 60 software enhancement requests as voted for on the Mentor IDEAS site for Mechanical Analysis Products, a strategy we’ve been committing … Read More

4 Sep, 2014

Robin Bornoff Arguably the most important (and often least well characterised) parameter controlling the temperature of electronic products is their power dissipation. Usually dissipated on the active layer of a die, this heat power seeps through the die, package, PCB, air, chassis all the way to the ambient in which the product sits. The less heat power the better, the lower the temperature rises that occur. The … Read More

4 Sep, 2014

Robin Bornoff FloVENT, FloTHERM’s sister product aimed at 3D CFD simulation of the built environment, has for many years been able to simulate the thermal behaviour of a data center. After all a data center is a built environment, albeit more for servers and the like than humans. We’ve not changed this capability of FloVENT but we have copied the relevant data centric features over to FloTHERM, extending … Read More

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