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Unsteady flow through 3D pipe

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Old   January 14, 2008, 01:53
Default Unsteady flow through 3D pipe
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Abhijit
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Dear All,

I am trying to simulate unsteady flow through a 3D pipe. I need to define step and impulse mass inflow excitation as the boundary condition at inlet.

Can anyone provide idea or literature on above inlet BC & how to define the same in Fluent?

Thanking you, Abhijit

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Old   January 14, 2008, 06:02
Default Re: Unsteady flow through 3D pipe
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kris
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you have kinds of acoustic problem

I mean your fluid is media for acoustics

first, you imposed period mass flow rate or pressure on inlet condition

second, setting pressure BC on outlet condition.

you need to consider a resonance by acoustic effect

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