CFD Online Logo CFD Online URL
Home > Forums > Siemens

MRF rotation in unstady simulation

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

LinkBack Thread Tools Display Modes
Old   May 25, 2012, 02:45
Default MRF rotation in transient simulation
New Member
Join Date: May 2011
Location: München
Posts: 12
Rep Power: 8
Clementhuon is on a distinguished road
Hi everyone,

I'm doing some transient simulation on a brake system. To simulate the brake disc, I created a new region with a specific motion (here a rotation). The simulation looks to run fine, I can see with a .case file that my wheel and my brake disc are mooving as expected.

But by looking clother I found a problem in the velocity profile on the disc. This one should have a velocity distribution with a revolution symetry (he turns around a rotation axis) but this is not the case (see the picture below).

For information, I'm running the simultion in unsteady (after steady initialization) in coupled, with a time step of 5e-5 s, the rotation velocity is 1200 rpm.

Does anyone got an idea ??



Last edited by Clementhuon; May 25, 2012 at 05:35.
Clementhuon is offline   Reply With Quote


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
Replacing mesh while running a simulation akultane CFX 1 November 15, 2009 14:46
How to set domain translation and rotation in CFX ricardo.halfeld CFX 7 September 8, 2009 18:22
rotor simulation having both rotation and translat kumar CFX 1 November 14, 2002 20:18
rotation flow field simulation wason FLUENT 1 May 26, 2000 13:10
3-D Contaminant Dispersal Simulation Apple L S Chan Main CFD Forum 1 December 23, 1998 11:06

All times are GMT -4. The time now is 02:44.