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Unsteady flow in FLUENT

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Old   November 2, 2005, 09:33
Default Unsteady flow in FLUENT
Vidya Raja
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Hi, I want to simulate unsteady (pulsatile) flow in FLUENT. Which command can help me do this? I have a pulsatile flow waveform (sinusoidal) in WINDAQ and I want to introduce this into FLUENT in my geometry. The flow is laminar.

Thanks, Vidya
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Old   November 2, 2005, 11:11
Default Re: Unsteady flow in FLUENT
Francisco Alarcón
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Hello. If you want to introduce transient boundary condition , else you must use UDF's (User defined functions).
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Old   November 2, 2005, 16:29
Default Re: Unsteady flow in FLUENT
Vidya Raja
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Hi, Thanks for the info. But what do you mean by transient boundary conditions? My aim is to introduce a pulsatile unsteady flow into my geometry, something like a sinusoidal wave. And how do I use UDFs? When I tried to use it, some of the options were grey (unuseable). Can you please tell me how to use it?

Thanks a lot. Cheers, Vidya
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