What in the world is Engineering Fluid Dynamics?

We are all familiar with Computational Fluid Dynamics (CFD).  Some of YOU are experts in this science/art and use it on a daily basis to solve some of your most complex fluid flow and heat transfer problems.  Some of US can hardly spell CFD and as engineers design their products they depend heavily on the CFD specialists to perform the simulations that determine if what they are designing will work the way they want it to.  Why?  Because the classic CFD software is extremely difficult to setup, use, interpret results, and run through those multiple “What-If” variations to the design that enable engineers to fine tune the design to the best functionality, most reliable, …..

 

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But the increasing competitiveness of the market is making this over-the-wall process (from the design engineer, to the CFD specialist, and back) impractical to meet the goals of designing the best, most competitive product in the short times demanded by companies.  So, what is the solution?  What if we had a CFD solution that mere mortals could use?  What if that solution was embedded right into the design system?  What if the setup was wizard based and you didn’t have to laboriously re-define the mesh and models?  What if you could run many variations of your design without re-setup simply by changing the design, running automatic re-meshing, and re-executing the simulation? 

 

We call this Engineering Fluid Dynamics as it opens up the door for the non-CFD specialist to not only create the design but also determine if they have created the best functioning, most reliable design in the ever shortening schedules management is demanding.

About John Isaac

imageBiography: More than 40 years experience in design software. Seventeen years with IBM developing and managing the development of design systems. Joined Mentor Graphics in 1984. Expertise: High level knowledge of all aspects of systems design. Understanding of industry and technology trends, and, company's basic business drivers and how they relate to product developement capabilities. Visit CFD doesn’t mean Color For Directors

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6 Comments on this Post

Commented on 10:37 PM, May 22, 2009
By Iris Florea

I am the first one to state that I want to be involved in, and learn how to use Engineering Fluid Dynamics. I have used and interpreted simulations done by the proes in Fluent, and I have timidly used SolidWorks (FluidFlow module), which is not competitive enough when dealing with complicated flow simulations, and boundary conditions that are difficult to define, unless you come with hard test data for the case study baseline. Unfortunately no matter how much you want to learn more, there are all sorts of walls in the way. If you are unemployed and have the time to learn, you don't have the software and can not buy a student edition, because you are not a full time student. You work for a company that needs CFD to upgrade their product lines,but: they either don't have the moneys, don't understand the need for, or if everything else works out in the end, will select only a happy few to train. There are excellent programs, but can not get close to a group that uses it, and are willing to accept a shinning eyes, full of hopes newbie and give them the possibility to learn. Any ideas, or suggestions on how to learn a competitive CFD program, are greatly appreciated.

Commented on 4:04 PM, May 27, 2009
By Nazita Saye

Ms. Florea brings some excellent insight to this discussion. The shift is happening and is gathering momentum but perhaps at a slower pace than most progressive engineers like Ms. Florea would prefer. Many senior managers who have traditionally been adamant about keeping the two functions of analysis and design separate are beginning to understand that conducting analysis during the design phase relieves some of the pressure from their analysis group. If you're not lucky enough to be working for such a group, then there are other ways. Some engineers have taken it upon themselves to champion the cause within their organization with grass-roots efforts. One of our end-users in the Netherlands was due for some training. As a part of the process he arranged for a couple of extra seats of software for a few days. Then he sent out a note to all the design engineers in the group to see who'd be up for some training. He ended up having more volunteers than he had seats for in the training room! His effort achieved two goals: firstly, he was able to educate others within the group of the benefits of simulation and secondly their management team realized that more design engineers were willing to take on the extra challenge. In a slow economy where every penny counts this is fantastic news for not only managers but also the engineers involved. Some organizations are shy about technology because they were burned by vendors who promised them the moon and instead delivered a pebble. So you can't blame them for being cautious when it comes to spending money on the software. Or they quite simply just don't understand the benefits of simulation. In these cases, I'd like to suggest an educational approach. Most reputable vendors are more than happy to prove their technology to you so ask them to solve a typical design problem for you. Alternatively, request a short-term trial license -- this way you'll get an opportunity to play with the software to see if indeed it is the right tool for you. Armed with the results from both exercises you'll be able to prove to your managers that investment in the technology can not only pay for itself but also help the company bottomline. As a matter of fact, my new blog focuses on ROI of simulation. Please feel free to visit it at blogs.mentor.com/roi for more information. I do hope one of these scenarios proves helpful to Ms. Florea so she can break down the barriers to simulation.

Commented on 1:37 AM, May 28, 2009
By Iris Florea

Hello Nazita, Thank-you very much for the feed-back. I agree with everything you wrote above; my challenge in breaking the barriers to simulation are a bit more complex now. I lost my job; I worked a lot of contract project work for companies using fluid power, and that puts me in an awkward situation. First I have to get back to my feet, and get into a competitive design engineering position with a company that understands the need for simulation. Then I can apply the strategies you indicated. I tried to get training in the last 5 years through a company supported program, I didn't succeed. As a private person, I learned some of the SolidWorks Simulations programs, but I want to be able and learn more, and get trained in a more competitive software. As far as I know- and I might be wrong, the training is pretty expensive, and past the training, I need to be able to use the software to keep my skills active. Any advise for such situations, please? Learning a good simulation software is a must.

Commented on 9:23 AM, Jun 1, 2009
By Nazita Saye

Hello Iris, I have a few suggestions! I'll send them directly to your email.

Commented on 4:41 PM, Nov 13, 2009
By Ted Jones

I'd like some of those suggestions also. Thanks!

Commented on 7:59 PM, Nov 16, 2009
By Nazita Saye

Hi Ted, would you mind dropping me an email so I can send you my suggestions? My email is firstname_lastname@mentor.com

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