Fluent or CFX if Ma >5 ?

October 20, 2005, 11:18

Hi,

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

yflin

October 21, 2005, 06:56

They all can't do it! You can use Fastran(CFDRC). The Fastran is designed to calculate the high Mach Fluid.

October 23, 2005, 05:53

Hi,

Although I do not know the situation after ESI thing, Fastran was good in aerothermal flows, I am not sure about CFX but I know Fluent can solve hypersonic flows. Fluent has a validation case where Ma=29.45(Yes, Ma=29.45!) around a sphere is simulated. The results are compared with two experimental data, one of Widhopf AIAA-88-2711, the other Dellinger AIAA-69-655 and there is an excellent agreement. Please note that flow is dissociating --> in chemical non-equilibrium.

Regards,

Emre

October 20, 2005, 11:18	Fluent or CFX if Ma >5 ?	#1
yflin Guest Posts: n/a	Hi, If I want to simualte a case with Ma >5, which software is better, Fluent or CFX? Or another one? Thanks. yflin

October 21, 2005, 06:56	Re: Fluent or CFX if Ma >5 ?	#2
zj Guest Posts: n/a	They all can't do it! You can use Fastran(CFDRC). The Fastran is designed to calculate the high Mach Fluid.

October 23, 2005, 05:53	Re: Fluent or CFX if Ma >5 ?	#3
Emre Ozturk Guest Posts: n/a	Hi, Although I do not know the situation after ESI thing, Fastran was good in aerothermal flows, I am not sure about CFX but I know Fluent can solve hypersonic flows. Fluent has a validation case where Ma=29.45(Yes, Ma=29.45!) around a sphere is simulated. The results are compared with two experimental data, one of Widhopf AIAA-88-2711, the other Dellinger AIAA-69-655 and there is an excellent agreement. Please note that flow is dissociating --> in chemical non-equilibrium. Regards, Emre

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