CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

Troubleshooting Unsteady Incompressible Flow Solver

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 15, 2010, 11:55
Default Troubleshooting Unsteady Incompressible Flow Solver
  #1
Member
 
Dan
Join Date: Oct 2010
Location: UK
Posts: 41
Rep Power: 6
dandalf is on a distinguished road
Hi There,

I have written a 2 dimensional incopressible flow solver working on a finite volume cartesian grid, using a pressure correction algorithm.

I am trying to validate, against a bench mark solution for Re 100 flow over a submerged cylinder.

I know the flow is suposed to be unsteady, however my solver seems to keep converging on a stable soltion.

The resultant drag coefitiants agree well with the bench mark figures (+or- 15%-20%), however their is a distinct lack of instability.

Can anyone sugest possible reasons for my unwanted stability?

Dan
dandalf is offline   Reply With Quote

Reply

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
compressible flow calculation error using rhoSimpleFoam solver student4326 OpenFOAM 6 February 10, 2012 10:36
Unsteady simulation on the flow around Naca0012 Peter Pan Zhang FLUENT 2 June 11, 2006 19:53
steady solver as initial guess for unsteady flow Muhammad Shakaib FLUENT 1 December 7, 2005 13:58
Unsteady 3d flow and k-eps model J Roued Main CFD Forum 13 August 31, 1999 13:32
Incompressible flow solver (staggered grid) J. Ehrhard Main CFD Forum 1 October 8, 1998 19:47


All times are GMT -4. The time now is 16:42.