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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

저는 STAR-CCM+®를 사용하기 전까지 내 경력의 대부분을 오픈소스 CFD 툴을 사용하는데 소비했고 무료 시뮬레이션 소프트웨어에는 종종 비싼 가격이 동반된다는 것을 마침내 깨달았습니다. 이 말이 모순처럼 들릴 수 있지만, 한 푼 지출 없이 마우스 클릭 한 번으로 다운로드하여 자유롭게 사용하고, 수정, 그리고 공유하는 것은 보이는 것보다 싸지 않습니다. 작업에 소요된 시간에 있어 시뮬레이션 소프트웨어의 진정한 가치를 고려해보면 거기에는 광범위하게 숨겨진 비용이 있음을 알아야 합니다. 시간의 가치는 얼마일까요?

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.

I am not a soccer fan, but all the men in my life are fanatics and thus World Cup fever has taken over the Goodwin household. You might be surprised at what happens when an uninterested CFD engineer is forced to watch soccer...

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

...you can't beat the gas mileage!

It all started in 1982 when Hans Tholstrup and Larry Perkins built a solar-powered car and drove it across the entire continent of Australia. Driven by the success of their vehicle, aptly named "Quiet Achiever", they encouraged others to push the limits of alternative energy vehicles. Five years later, the very first World Solar Challenge was born. Every other year since, teams from across the globe - prominent universities and private organizations alike - converge in Darwin, Australia to make the 3.000 km trek south to Adelaide in their solar-powered vehicles using regular ol' public roads and minimal camping gear for the seven-day journey.

Emilia III

CD-adapco에서 근무하면서 가장 큰 성과 중 하나는 곧 출시되는 STAR-CCM+ 새로운 버전의 뛰어난 기능들을 보여주는 멋진 수많은 애니메이션을 볼 수 있다는 것입니다. 아쉬운 점은 새로운 기능이 출시 전까지 이러한 것들을 공유할 수 없다는 부분입니다. 저는 오늘 제가 보고 또 다시 보게 되는 가장 좋아하는 두 가지 영상을 보여드릴 수 있어 매우 기쁘게 생각합니다. 두 영상은 움직이는 형상과 경계면 사이에서의 직접적인 모델 접촉 또는 충돌에 대한 해석이 가능한 STAR-CCM+ v9.04의 DFBI(Dynamic Fluid Body Interaction) 솔버를 사용한 새로운 접촉 모델을 보여주고 있습니다.

STAR-CCM+ colormap editor

많은 사람들이 STAR-CCM+ 인터페이스 앞에서 긴 시간을 보낸 후 자연스럽게 다음과 같은 질문을 떠오르게 합니다. “더 쉽게 할 수 있는 방법이 있을까?” 결국, 엔지니어들은 명쾌한 해결책을 찾게 되었고 소프트웨어 작업에 소비되는 시간을 줄이기 위한 기회로 뛰어들게 되었습니다. 운 좋게도 STAR-CCM+ v9.04 는 작업을 더 쉽게 하기 위해 만들어진 새로운 시간 절약 기능에 대한 다양한 기능들이 포함되어 있습니다.

STAR-CCM+ colormap editor

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Brigid Blaschak
Communications Specialist
Stephen Ferguson
Marketing Director
Dr Mesh
Meshing Guru
Joel Davison
Lead Product Manager, STAR-CCM+
Matthew Godo
STAR-CCM+ Product Manager
James Clement
STAR-CCM+ Product Manager
Tammy de Boer
Global Academic Program Manager
Sabine Goodwin
Director, Product Marketing