# finite-volume poisson solver

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 August 14, 2010, 20:05 finite-volume poisson solver #1 New Member   Scott Join Date: Jul 2010 Posts: 4 Rep Power: 8 Hello, Can anyone direct me to code or literature for a 3D finite-volume Poisson solver on non-uniform Cartesian coordinates? I am more concerned with the proper determination of the coefficient matrix than the solution method for the system of equations. Any help is greatly appreciated. Thanks, Scott

 August 16, 2010, 20:21 References #2 Member   Wu Jian Join Date: Jun 2009 Location: Poitiers Posts: 33 Rep Power: 9 I remember there are two pieces of old paper which maybe help you, one is : Physica D (1992) High order finite volume approximations of differential operators on nonuniform grids another one is : Journal of Computational Physics, 1980, Solution of poisson equations on a nonuniform grid

August 16, 2010, 22:05
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Arjun
Join Date: Mar 2009
Location: Nurenberg, Germany
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Quote:
 Originally Posted by Scott2 Hello, Can anyone direct me to code or literature for a 3D finite-volume Poisson solver on non-uniform Cartesian coordinates? I am more concerned with the proper determination of the coefficient matrix than the solution method for the system of equations. Any help is greatly appreciated. Thanks, Scott
Have a look at fishpack by Paul.
solution matrix is determined in that by finite difference method.

 August 20, 2010, 03:16 #4 Member   Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 36 Rep Power: 9 Hei Scott, you could use the code from the Peric book ( ftp://ftp.springer.de/pub/technik/peric/ ) . Or you could use the NaSt3DGP code, which is finite-difference, time explicit and projection method (http://wissrech.iam.uni-bonn.de/rese...3DGP/index.htm). By the way, if you use a cartesian domain, you can also easily use finite differences. Regards Hans

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