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Old   September 10, 2009, 12:54
Default Swirl diffuser flow
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Hey guys,

I'm working on the air change effectiveness of a room, with swirl diffusers as the main air supply.

Here is the geometry that i'm using to model a swirl diffuser, with the flow of the fluid out of the thickness of the circular disc as show below.

I've calculated the swirl velocity with the flow rate. What do i have to setup in the velocity inlet boundary condition of the swirl diffuser to get a swirl motion in the inlet ?

I've seen the option of tangential axial radial , and wondering how do i convert the velocity to components of tangential axial and radial.

Please help me out here.
Thanks alot
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Old   September 10, 2009, 22:09
Default I am also looking for same thing today....
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Pls help us if somebody know it.
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Old   January 8, 2015, 03:20
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zahra rashidi
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hi i have exactly your question!did u solve it?
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