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

Specific dissipation showing oscillations in second order upwind

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 16, 2012, 02:38
Default Specific dissipation showing oscillations in second order upwind
  #1
New Member
 
Deepchand Singh Negi
Join Date: Oct 2011
Posts: 12
Rep Power: 5
deeimproptus is on a distinguished road
Working with jets impinging on flat plate.....using SST K-Omega model........running the first order upwind initially.....letting the simulation to converge .... after that initiating the second order upwind.....problem is the Specific dissipation rate is oscillating wildly ...... Under relaxation factor are momentum=0.4, kinetic =0.5, specific dissipation rate=0.5........
getting no idea???????


what to do?????
Again this is steady case, and the solver is green gauss node based:roll eyes:
deeimproptus 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
Specific Dissipation Rate (Omega) Lourival FLUENT 2 July 25, 2010 08:59
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
Simulation of a single bubble with a VOF-method Suzzn CFX 18 October 2, 2009 04:18
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 12:02


All times are GMT -4. The time now is 21:55.