|November 13, 2009, 11:09||
FFT solver for Poisson equation
Join Date: Apr 2009
Posts: 4Rep Power: 9
Iam simulating the swimming of an elastic filament in neutrally buoyant fluid using Immersed Boundary Method. Iam using a square periodic domain. The boundary conditions for pressure and velocity are periodic in both X and Y directions. Iam developing the code using Visual Fortran 90.
I have to use FFT for solving pressure poisson equation. I don;t have idea about how to use FFT in my code for periodic BC's.So plse tell me the procedures how I can use FFT in visual fortran 90 for solving pressure poisson equation with Periodic boundary conditions in X and Y directions.Plse tell me the step by step details as I don;t have idea about the use of FFT in fortran.
Anticipating a positive reply at the earliest......
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