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Old 12-30-2020, 02:06 PM   #1 (permalink)
aerohead
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$ 53,900 (US) for CFD?

1) I read through a paper on Tesla Model S CFD analysis out of China.
2) They mentioned:
* a 120-core server.
* kappa-epsilon turbulence model
* and SIEMENS STAR-CCM+ software
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Online, DELL Computer is offering a 120-core, 512-Gb unit for $ 4,000 ( US )
............................................... a 120-core, 1-Tb unit for $ 6,000 ( US )
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The Kappa-Epsilon turbulence model is available, free, online.
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It looks like, you can't get a direct price from SIEMENS, without going through a salesperson. ( It was the same for Dassault's Exa POWERFLOW ).
I did find an invoice online, from the US Nuclear Regulatory Commission, which purchased the STAR-CCM+ for $ 49,900 (US).
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Another fly in the ointment is, that one must have the data cloud for any specific vehicle, to input into the program.
The Chinese investigators had a Tesla, which was laser-scanned to create the data cloud.
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A single iteration required 3-hours, 25-minutes run time.
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Any modification of interest would require its own additional data cloud.
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The computer sounds cheap. One hour at Haus Racing's moving floor tunnel would pay for the small DELL computer.
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With something like 36,000 EcoModder members, we might swing enough donations for the software. A cheap cup of coffee per member.

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