question about pressure correction method
 

Can somebody tell me some effective method in sovling pressure correction poisson equations by FEM (no matter using Fractional step method or not) in fortran and how can I deal with the boundary conditions (formed in the process of Galerkin method of the poisson equations). Please tell some detailed referrences. Thank you very much.

Re: question about pressure correction method
 

I have made the equations but I need some effctive method to solve them. I have tried to use LU decomposition method to solve the matrix of poisson corrction equations in FEM. but I can not get the right answers. so,My question is how can I solve it effectively and how can I deal with the corresbonding boundary conditions form in Galerkin method (Green-Gauss equations)? I have read about relaxition method, but I don't know if it is effcient in FEM?