|September 26, 2002, 04:00||
2d incompressible polar problem
I am having trouble solving the polar form of the Navier Stokes Equations when applied to a donut shape physical grid.
The lower boundary is moving at 10 RPM and the upper boundary is stationary.
A book recommended that I solve the momentum equations sequentially and thus I did the following.
The method used per iteration is the point by point method or Gauss seidel.
I solve the angular momentum equations first until I get a linear result. Then I solve the radial velocities. As the solution solves an oscilation appears near the stationary boundary. No amount of relaxation factors will change it.
I am using this within a SIMPLE algorithm.
Any help would be appreciated.
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