CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

Coupled solver and multigrid

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   September 11, 2000, 09:05
Default Coupled solver and multigrid
Posts: n/a

Suppose we solve the momentum equation and continuation equation in each element sequencely ( which is called coupled solver), I want to apply the multigrid technique into this solver to accelarate the convergence, the discretization on the fine grid is via FEM ( Q1~/Q0 elememt), I have tried both algeraic and geometric multigrid, but both of them don't work.

I want to ask the following questions:

1. How to make prolongation of the velcoity and pressure coeficients( Algebraic Multigrid)?

2. How to transfer the residual ( geometric multigrid)?

3. Are there any one who have experience in this area?

I am desperatly struggling with these qustions (kidding) , anyone who can give some clues are sincerely appreciated.


Hongliang Yang
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Some confusion about coupled solver for incompressible flow bearcat Main CFD Forum 0 February 14, 2010 21:40
questions concerning solver and multigrid methodes youradvice Main CFD Forum 1 August 6, 2007 15:27
Multigrid and Coupled Solver oevermann OpenFOAM Running, Solving & CFD 2 October 29, 2005 12:32
multigrid solver in stretched/nonuniform grids? Lewis Main CFD Forum 3 September 26, 2003 11:26
MIGAL- coupled algebraic multigrid solver? George Bergantz Main CFD Forum 0 December 1, 2000 02:39

All times are GMT -4. The time now is 01:05.