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Forum: FLUENT

October 24, 2014, 14:07

Replies: 19

FFT in FLUENT

Views: 8,045

Posted By Shamoon Jamshed

for les model you need to check on unsteady and...

for les model you need to check on unsteady and the model should be 3D.

Forum: FLUENT

August 15, 2009, 09:21

Replies: 19

FFT in FLUENT

Views: 8,045

Posted By Shamoon Jamshed

I am simulating unsteady flow over Ariane 5...

I am simulating unsteady flow over Ariane 5 rocket. The solver is density based explicit and time formulation is explicit as well. I think in this case the number of samples=no of iterations. I want...

Forum: FLUENT

August 15, 2009, 08:04

Replies: 19

FFT in FLUENT

Views: 8,045

Posted By Shamoon Jamshed

no just simple FFT with ideal gas and transonic...

no just simple FFT with ideal gas and transonic flow and density based solver.
the problem is that I am getting very low value of Power Spectral Density on y axis (e-09) is it ok?

Forum: FLUENT

August 14, 2009, 15:02

Replies: 19

FFT in FLUENT

Views: 8,045

Posted By Shamoon Jamshed

FFT warning

While taking FFT of a signal in Fluent I get the following warning

Warning: Unknown x-function in Process_and_Plot_Signal function.

Can anybody tell me what does it mean?

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