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!!!

Re: Control function in Elliptic solver
 

I suggest you start with this classic reference:

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

Re: Control function in Elliptic solver
 

Are you trying to implement grid clustering only or both grid clustering and orthogonality with the control function?

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

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.