CFD Online URL
[Sponsors]
Home > Forums > CFX

High Local mach number for sub sonic flow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 2, 2006, 11:23
Default High Local mach number for sub sonic flow
  #1
kali
Guest
 
Posts: n/a
I have a rotor stator model. This is a subsonic model using RNG KE. But I have observed that locally the flow shows high mach number(2.7) at the exit of a narrow rotor stator gap. Essentially the flow comes out as a jet. Although CFX warns to change to max contuinty loop 2, still the model continues to run and gets converged. I suspect the mesh locally. But looks pretty decent(ICEM quality 0.4 determinant and 18 deg angle). Can someone through some lights on the issue including the grid..

Thanks in advance, Kali
  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
Boundary conditions low Mach number flow lost.identity Main CFD Forum 0 November 28, 2010 05:44
Large Eddy Simulation with too high Mach number Roland R CFX 4 November 25, 2010 17:43
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 08:36
Difficulties in solving a high Reynolds number Flow? wowakai Main CFD Forum 10 December 29, 1998 14:46
"The high Reynolds number flow is not difficult to compute, the problem is we simply don't know how. wowakai Main CFD Forum 1 November 11, 1998 11:24


All times are GMT -4. The time now is 18:50.