CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Is density-based solver slower than pressure-based one?

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

LinkBack Thread Tools Display Modes
Old   February 9, 2011, 12:26
Default Is density-based solver slower than pressure-based one?
New Member
Join Date: Apr 2009
Posts: 17
Rep Power: 10
Renold is on a distinguished road
Sponsored Links
Hi guys,

I tried two same cases using density-based solver and pressure-based solver respectively and found that the simulation time of the density-based one is 3 times as much as the pressure-based one. Is this normal or I made some mistakes?

Thank you.
Renold is offline   Reply With Quote
Sponsored Links

Old   February 9, 2011, 15:59
New Member
Join Date: Feb 2011
Posts: 2
Rep Power: 0
Rokk is on a distinguished road
yes it is normal. You should get more or less the same results, however the density based in slower. They differ in the way the fluid equations are numerically solved.
Said that, density based are very useful and suitable for supersonic flows. If your problem is not supersonic, pressure-based will do.

Rokk is offline   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
Pressure based and Density based Solver Xobile Main CFD Forum 22 June 24, 2016 07:24
NRBC and pressure based solver ageorg FLUENT 1 August 28, 2009 07:11
why the solver reject it? Anyone with experience? bearcat CFX 6 April 28, 2008 14:08
Pressure vs Density based CFD solvers Danie Main CFD Forum 0 October 5, 2004 09:48
Density based codes? H.S.Muralidhara Main CFD Forum 3 May 28, 1999 06:29

Sponsored Links

All times are GMT -4. The time now is 13:33.