# continuity residual

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 February 25, 2006, 07:06 continuity residual #1 majesticcc Guest   Posts: n/a Hi!ı am trying to solve a laminar flow in the neighbourhood of a disk rotating in fluid at rest.I am using 2d axisymetric swirl solver and laminar model.angular velocity of disk is 0.5 rad/s.But residuals of contunity did not decrease enough ı can not find the reason is there any body have an idea about this problem?

 February 25, 2006, 07:35 Re: continuity residual #2 Thomas Guest   Posts: n/a Are u sure this is a laminar problem? try to use the k-e; it will give good results also if the problem is really laminar. How's your mesh on the boundary?

 February 25, 2006, 08:05 Re: continuity residual #3 majesticcc Guest   Posts: n/a ı tried different kinds of mesh but the solution is same.also ı used 2d and 2ddp.now a ı am using uniform mesh.Pressure inlet-pressure outlet-wall-axis are my boundary conditions.

 February 26, 2006, 03:31 Re: continuity residual #4 Kharicha Guest   Posts: n/a Verify that you have enough points within your Ekmann layer...at least 10.... use presto, and use high underrelaxation factor for the pressure and low for the velocity...

 February 27, 2006, 00:00 Re: continuity residual #5 rener Guest   Posts: n/a sdfa

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Lord Kelvin OpenFOAM Running, Solving & CFD 8 March 28, 2016 11:08 xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 15:33 jonmec OpenFOAM Running, Solving & CFD 3 July 28, 2011 05:24 carsten OpenFOAM Bugs 11 September 12, 2008 11:16 liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 19:07

All times are GMT -4. The time now is 11:43.

 Contact Us - CFD Online - Top