CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

troubleshooting tips

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 3, 2013, 06:27
Default troubleshooting tips
  #1
New Member
 
Anonymous
Join Date: Apr 2011
Location: Rotherham, England
Posts: 13
Rep Power: 14
freddyk is on a distinguished road
I am running a drag and lift prediction for flow over an ahmed body and Star-CCM+ consistently gives me under predicted values by around 20%. I have tried changing turbulence models and refining the mesh in the wake but neither helped. My question - what are some basic steps I can take to diagnose the problem?
freddyk is offline   Reply With Quote

Old   April 8, 2013, 11:06
Default still need help
  #2
New Member
 
Anonymous
Join Date: Apr 2011
Location: Rotherham, England
Posts: 13
Rep Power: 14
freddyk is on a distinguished road
I have provided these images if they can be of use determining my issues.

Wall Y+



Centreline Velocity Magnitude



Velocity Magnitude from a different piece of software (correct!)



Streamlines from Literature

freddyk is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Troubleshooting ''ERROR #001100247 has occurred in subroutine'' Francis CFX 3 April 1, 2014 02:26
[ICEM] Tips for 3D tetra mesh quality for Fluent transient run. Rotary Engine Catthan ANSYS Meshing & Geometry 0 June 18, 2012 12:46
tips to speedup the convergence of CHT problem with gravity derisala FLUENT 1 February 24, 2011 02:28
Need some tips to model heat transfer Cjlaumans FLUENT 0 August 25, 2009 03:50
Tips, tricks and other success stories Robin Steed CFX 2 December 18, 2001 23:27


All times are GMT -4. The time now is 09:29.