[gerardosrez]

Hi CFD guys,

I developed a collocated 2D CVFEM code for unstructured grids and I want to get the streamfunction field from the velocity field I get when I solve the momentum and continuity equations.

How can I do this???

Thanks in advance...

[FMDenaro]

Originally Posted by gerardosrez

Hi CFD guys,

I developed a collocated 2D CVFEM code for unstructured grids and I want to get the streamfunction field from the velocity field I get when I solve the momentum and continuity equations.

How can I do this???

Thanks in advance...

a choice: you can compute the vorticity field rot V then solving for Div Grad Psi = rot V

[gerardosrez]

Originally Posted by FMDenaro

a choice: you can compute the vorticity field rot V then solving for Div Grad Psi = rot V

Thanks FMDenaro but for solving this I need boundary conditions, so my next question is what are the boundary conditions for this system?

Thank you very much FMDenaro...

[FMDenaro]

when you know the velocity on the boundary then you know also the Psi assignment....