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Hoang Anh Duong July 2, 2007 04:04

Control function in Elliptic solver
 
I am implementing a grid generation code by using elliptic differential equation for 3D SURFACE. However, I have a problem with choosing control function P and Q for generate grid for 3D SURFACE. Are there anyone have experience about this? Help me!!!

John Chawner July 7, 2007 15:53

Re: Control function in Elliptic solver
 
I suggest you start with this classic reference:

http://www.hpc.msstate.edu/publicati...ook/index.html

Harish July 8, 2007 16:01

Re: Control function in Elliptic solver
 
Are you trying to implement grid clustering only or both grid clustering and orthogonality with the control function?

Hoang Anh Duong July 8, 2007 20:47

Re: Control function in Elliptic solver
 
I am trying to implement both grid clustering and orthogonality. I think control function is uesd to transfer the grid distribution on the boudary to the interior grid.

Thanks for your answer

andy July 9, 2007 03:32

Re: Control function in Elliptic solver
 
My experience has been that the Ps and Qs can work to some degree but are awkward to use in practise. I had better success modifying the coefficients to control the grid distribution rather than the souce terms although my interest was in non-conformal orthogonal grids and so this experience may not map to what you are trying to do.



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