Conjugate gradient solver for pressure. -- CFD Online Discussion Forums

November 12, 2004, 11:49	Conjugate gradient solver for pressure.	#1
R.F. Guest Posts: n/a	Hi, Does anyone know how effective a Conjugate Gradient solver for pressure correction is when used in flows with large density variations (accompanied with large velocity changes to ensure conservation) particularly when the changes are very rapid. i.e, across a few cells. My preconditioned (incomplete cholesky decomposition) CG-Solver is by Van Der Vorst. My CG-Solver is not converging at each time step for this case. Is there another solver which can deal effectively with this? Any comments are most welcome.

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 Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Creating New Solver: For particle-laden compressible jets	sankarv	OpenFOAM Running, Solving & CFD	17	December 3, 2014 19:41
Creating New Solver: For particle-laden compressible jets	sankarv	OpenFOAM	0	April 4, 2010 18:06
Can segregated solver be used for compressible flow?	Steven-GY	ANSYS	0	May 14, 2009 10:37
compressible two phase flow in CFX4.4	youngan	CFX	0	July 1, 2003 23:32
Poisson eq and conjugate gradient method	Gary Dantinne	Main CFD Forum	2	March 19, 1999 00:24

All times are GMT -4. The time now is 02:41.