CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

moving refernce frame (MRF) vs sling mesh

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 3, 2010, 04:35
Default moving refernce frame (MRF) vs sling mesh
New Member
Join Date: Oct 2010
Posts: 25
Rep Power: 14
sunflower is on a distinguished road
Dear All,

I am working on the modeling of flow field in stirred tanks currently. The geometry consists of impeller, baffle, etc. I have tried both moving reference frame (MRF) for steady state and sliding mesh (SM) for transient simulation. I have a few questions to ask you guys.

1. I noticed some post ( in this forum said MRF is not good and yields wrong simulation result. Is this confirmed by many Fluent users?.

2. Some guy said “steady-state” can be reached in some stirred tanks after many cycles to reach by sliding mesh method. What does “steady-state” mean? Do it mean that flow field will be the “same” when impeller is located in the same position in the next cycle?

3. Will initial condition in transient case affect the final simulation result if the so-called "steady state" can be reached after many cycles? Or it affects the convergence speed only?

Please help. Any comment is really appreciated. Thanks again!
sunflower is offline   Reply With Quote


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
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 07:42
[ICEM] Generating Mesh for STL Car in Windtunnel Simulation tommymoose ANSYS Meshing & Geometry 48 April 15, 2013 05:24
[Gmsh] 2D Mesh Generation Tutorial for GMSH aeroslacker OpenFOAM Meshing & Mesh Conversion 12 January 19, 2012 04:52
does sb can tell me what is the differences between moving mesh and moving frame? caohan FLUENT 0 June 2, 2010 06:15
Moving Mesh and MRF Romain FLUENT 1 May 16, 2002 04:45

All times are GMT -4. The time now is 17:07.