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Fluent or CFX if Ma >5 ?

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Old   October 20, 2005, 10:25
Default Fluent or CFX if Ma >5 ?
  #1
yflin
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Hi,

If I want to simualte a case with Ma >5, which software is better, Fluent or CFX? Or another one? Thanks.

yflin
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Old   October 20, 2005, 14:11
Default Re: Fluent or CFX if Ma >5 ?
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Alan
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Hi,

I heard that the energy equation is buggy in CFX. This can be tested on an simple throttle where enthalpy should be constant but it's not with CFX.

I repeat: This is what I heard but I haven't tested on my own.

If true, you'd prefer Fluent for Ma > 5

- Alan
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Old   October 27, 2005, 05:24
Default Re: Fluent or CFX if Ma >5 ?
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Arunvel Thangamani
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Certainly Fluent is the best, if Ma>5 then it can involve a thicker turbulent BL that SST (code CFX employs) many not be as effective as RNG k-E Method (code Fluent Employs).
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Old   October 28, 2005, 11:19
Default Re: Fluent or CFX if Ma >5 ?
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Ben
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Or of course you could use STAR-CCM+ which has got a nice coupled solver and both SST and K-E
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Old   October 28, 2005, 17:55
Default Re: Fluent or CFX if Ma >5 ?
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han toss
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Try the following two CFD tools that ESI-CFD offers:

CFD-FASTRAN: Developed for high speed aerodynamics http://www.esi-group.com/SimulationS...e/CFD_Fastran/

PAM-FLOW: Developed for high speed flows and aero-acoustics http://www.esi-group.com/SimulationS...ero_acoustics/

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