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Problems with Parallel Plate flow with Body Forces
Posted 24 ott 2010, 18:19 GMT-4 0 Replies
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I am having trouble modeling parallel plate flow with an applied force. I am trying to replicate a simple hartmann flow where a Lorentz force pushes against a flow to change the flow profile. To simplify things, I solved for the Lorentz force separately and applied it as a body force. The problem is, when I solve with inlet and outlet constant pressure conditions, the flow profile remains parabolic instead of flat in the middle. I have tried to use exact solutions as a first guess, but my solution does not converge. Am I applying the wong boundary conditions (using comsol 3.5)? I want a somewhat constant dP/dx so it can match my exact solution.
I think end effects may be altering my solution, but I don't understand why the solution is parabolic when I clearly apply a force that is stronger in the middle of the flow.
Thanks,
Tim
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Hello Timothy DePuy
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