Cyclone Opening boundary Conditions
 

Hi There.

Which Boundary conditions is the optimum choice of outlet/opening boundary condition for the swirling outlet of a cylone?
<LI>Cartesian Velocity Components, <LI>Cylindrical Velocity Components, <LI>Opening Pressure and Direction, <LI>Opening Pressure for Entrainment, <LI>Static Pressure and Direction, <LI>Static Pressure for Entrainment?
The Navier Stokes equations reveals that dP/dr = rho/r*Vteta^2 for a swirling flow, but should I implement that specifically, or can I use some of the above listed choices? Kind regards

- Michael