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I’m a control freak. Give me some reports, and I’ll use every single one of them to know everything and anything about my simulation. Well, what if the pressure all of a sudden spikes up uncontrollably? Must mean that something should be verified in my simulation, perhaps I didn’t use the right cell size, and well who knows, my results may turn for the worst, be wrong, and my gradually slowly building up reputation of a serious design engineer, not only Dr Mesh "knows how to fix your cells”, would be down the drain in an instant!

Pub Lunch!

From bridges made of pasta, to 'grow-it-yourself' brains, Brigid looks behind the headlines to bring you the latest Engineering News.

Spaghetti Bridge - image courtesy of Michelle Lowry

When my son graduated from University a few years ago with his shiny new degree in Accounting, he was eager to land his first “real job.” One that didn’t involve wearing a paper hat or asking if you’d like fries with that.

After a several interviews it became clear that he was lacking a key skill that most hiring managers were looking for: exposure and/or experience with the commercial software the company was using for their accounting process. It was shocking to learn that he had never been exposed to any of the commercial tools that are heavily used in the industry for which he was preparing to enter. Although he graduated with a strong understanding of accounting principles, future employers expected that knowledge to be coupled with hands-on experience with their standard tools.

Ah, summer holidays, the beach, the sun, brain-matter replaced from thoughts of velocities, pressures and optimizations with pina coladas… Except that I went camping close to a river. Of course, you know what happens when a CFD engineer watches a river for too long? He sees streamlines, algae flowing around bridge pillars in neat flow paths, and immediately spots a leaf following the path of least resistance… and wonders what the residence time of that leaf is. So this all got me thinking about work again.

Wild River image

Before I left for my holidays, I was trying to showcase the recirculation zones in our latest invention. Nothing would portray them as badly as I felt they were. I tried vectors, I tried streamlines, I tried scalars and overlaying various field functions on various derived parts. Nothing would do it. I'm not a Colorful Fancy Designer, I'm Dr Mesh and my speciality is meshing, so I really need to learn about these post-processing things. I read with eagerness the posts from Matthew Godo.

I ran across an article the other day that made me, ahem... perk up. CFD was used to simulate roasting coffee beans! Coffee is something I know AND care about. But why would CFD be needed for something as "non-techie" as roasting beans? Like everything else under the sun, it comes down to plain ol' chemistry. The final flavor profile of the bean will vary widely based on temperature and roast time.

Obnoxious Latte

私はキャリアのほとんどを無料のオープンソースCFDツールを利用する業界で過ごしてきました。そして数年前にSTAR-CCM+®を利用するようになってから初めて気づいた事がありました。無料のシミュレーションソフトウェアは大体、非常に高くつくのです。これは明らかに矛盾しているのは承知しています。マウスのクリック一つでコードをダウンロードして自由に利用し、1円も費やさずにコードを修正してそれを共有する。これが結局のところ一番安上がりなのです。しかし、そこには大きなコストが隠れていて、あなたのシミュレーションソフトウェアの本当の価値について考えるときには織り込まれなければならないものがあります。それはコードが使えるようにするために費やされる、あなたの時間です。そして、あなたの時間にはどれだけの価値があるのでしょうか?

My involvement in the World Cup is a little more personal since my first project at CD-adapco involved the aerodynamics of soccer balls. The 2010 World Cup ball, the Adidas Jabulani, had its fair share of criticism due to its shallower seams and 8-panel design leading to erratic flight paths. The ball was difficult to control for the players and rumors have it that some goalkeepers still have recurring nightmares of the ball. In 2010, CD-adapco teamed up with Wilson Sporting Goods to study the aerodynamic behavior of soccer balls and the impact of the newer panel designs.

私はサッカーファンではないのですが、私の人生でかかわる人すべてが熱狂的なので、グッドウィン家でもワールドカップ旋風が巻き起こっています。でもサッカーに興味のないCFDエンジニアがサッカー観戦を強いられたときに何が起こるかに皆さんは驚かれるかもしれません。

During the opening session of the STAR Global Conference earlier this year, Didier Halbronn, CD-adapco Vice President of European Sales, spoke about our ongoing commitment in the field of multi-disciplinary design exploration (MDX). In this blog I want to highlight a couple of new features in v9.04 of STAR-CCM+ that approach this in different ways.

CFD optimization CFD

In an effort to make STAR-CCM+ even faster on a broader range of problem types STAR-CCM+ v9.04 (which is released next week) will offer Concurrent Per-Part Meshing (which is a bit of a mouth full, so we'll call it CCPM instead).

Now, I'm sure you're asking yourself, ‘What’s the difference between CPPM and regular parallel meshing?’

Concurrent Per-Part Concurrent

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Brigid Blaschak
Communications Specialist
Stephen Ferguson
Communications Manager
Dr Mesh
Meshing Guru
Sabine Goodwin
Senior Engineer, Technical Marketing
Prashanth Shankara
Technical Marketing Engineer
Joel Davison
Product Manager, STAR-CCM+
Jean-Claude Ercolanelli
Senior Vice President, Product Management at CD-adapco
Bob Ryan
President Red Cedar Technology