CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Mesh Generation & Pre-Processing (http://www.cfd-online.com/Forums/mesh-generation/)
-   -   3D Structured Grid (http://www.cfd-online.com/Forums/mesh-generation/125486-3d-structured-grid.html)

mnabi October 26, 2013 11:26

3D Structured Grid
 
I am writing a code to generate a 3D structured mesh using differential equations for x, y and z. I used SOR method to solve these equations, it works fine, but too slow. As I want to use this grid generator for flow with deforming boundaries (grid will be updated each time step), I need a fast process for generating the grid.

I tried to use multigrid techniques to solve the equations. Although multigrid works, but it is still too slow, and it needs many iterations to reach to a converged solution. It is more critical, if I use control functions and stretch the grid lines close to the boundaries. I used GS smoother in the multigrid. I also used linewise smoothing in the high stretching direction, but still I can't get a fast convergence.

Is there any method to accelerate this process in multigrid? Is there any method/algorithm (other than multigrid) which can solve these equations in a fast way?

Thanks
Nabi


All times are GMT -4. The time now is 14:16.