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Assigning velocity as a boundary condition
Posted 2013年8月11日 GMT-4 01:15 Computational Fluid Dynamics (CFD) 1 Reply
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I am modeling an electrophoretic phenomena where the governing equations are
- Navier Stokes equati
- Poisson equation
- Nernst Plank equation
This is an axisymmetric model containing a half circle (sphere) at the symmetry boundary. I need to assign a z- velocity over the circle. The available BC are sliding wall and Moving/Leaking wall. The sliding wall seems to give the tangential component of velocity which should work good for the plane boundary not for a circular boundary. And the Moving/Leaking wall it gives phi velocity edit field which made me really confused. What is this Phi velocity? Is it z-velocity here? If so why such named?
With regards
Tariq
Hello Tariq Mahbub
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I have exact the same confusion. Did you have an answer for it? Thanks