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November 13, 2009, 11:09 |
FFT solver for Poisson equation
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#1 |
New Member
Ranjith
Join Date: Apr 2009
Posts: 4
Rep Power: 17 |
Hi All,
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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November 16, 2009, 02:12 |
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#2 |
Senior Member
N/A
Join Date: Mar 2009
Posts: 189
Rep Power: 17 |
Take a look at the DNS code at www.channelflow.org. It might give you idea on the development of the solver.
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