An FFT Based Fast Poisson Solver on Spherical Shells

An FFT Based Fast Poisson Solver on Spherical Shells

Year:    2011

Communications in Computational Physics, Vol. 9 (2011), Iss. 3 : pp. 649–667

Abstract

We present a fast Poisson solver on spherical shells. With a special change of variable, the radial part of the Laplacian transforms to a constant coefficient differential operator. As a result, the Fast Fourier Transform can be applied to solve the Poisson equation with O(N3logN) operations. Numerical examples have confirmed the accuracy and robustness of the new scheme.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.060509.080609s

Communications in Computational Physics, Vol. 9 (2011), Iss. 3 : pp. 649–667

Published online:    2011-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    19

Keywords: