External Aerodynamics for Race Car- Which CFD software is good?
Hi all,
My company is in the selection of a CFD program that is on the lower end of the spectrum cost wise (so ANSYS, and CD-Adapco are out). We will be performing external aerodynamics only, something with k-e or spalart-allmaras modeling is preferred. We are looking for a software that will be a good supplement to the design process, preferably with a built in pre-processor. We are looking at CFDesign, FlowEFD, FloWorks, Flow3D, NUMECA, Phoenics and OpenFOAM but don't know what are the advantages/disadvantages of each. More suggestions to software options are welcomed too. Any suggestions? :) |
Do you want a variety of turbulence models as well?
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I think the S-A and k-e model will be used most of the time, so other types of models isn't really necessary
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Where in the world are you?
Something worth considering is the question of what is available in terms of local expertise and support. For example, if you have a strong group in the immediate vicinity working with OpenFOAM, it becomes quite a strong candidate, but if you don't have that, you would be in for quite a tough struggle. Modern communications are wonderful, and one can do much remotely, but there is a lot to be said for quickly calling somebody over to come and sit with you to sort a difficult problem out.
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Another Suggestion
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Caedium Professional (includes RANS Flow) provides an easy-to-use GUI environment for geometry import/creation (not embedded in a CAD system), meshing, CFD solver setup and control, and post processing "at an unbelievable price." - phrase of the moment thanks to Apple :) Full disclosure: You've probably guessed already that I represent Symscape the developer of Caedium. OpenFOAM is a trademark of OpenCFD and is unaffiliated with Symscape. |
Do you have an idea of what hardware you will be solving on?
I'm imagining you'll need something reasonably meaty to do external race-car aero. OpenFOAMs meshser - snappyHexMesh - will mesh in parallel which would be an advantage. I'm not too sure about the pre-processing abilities of the packages you mention, but I dont think they mesh in parallel. CapSizer is right about access to expertise wrt openfoam though... |
Thanks for the response guys. My previous experience is with GAMBIT/Fluent, how does OpenFOAM compare to that in terms of user difficulty? Also, does OpenFOAM come with a pre-processor that is good enough for complex meshing? Say, compared to GAMBIT.....
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could be me, but seems like you really need to decide what you need in a cfd solution.. honestly, turbulence models should be the least of your worries
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Now I just find the pressure for incompressible and invscid flow
Once I find way to find the pressure on a body in a compressible air flow, you come to see me and don't need to seek any software.
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