CFD Online Logo CFD Online URL
Home > Forums > CFX

MFX 2 way thermal FSI

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

LinkBack Thread Tools Display Modes
Old   October 25, 2013, 10:27
Default MFX 2 way thermal FSI
Join Date: Apr 2011
Posts: 30
Rep Power: 6
MainzerKaiser is on a distinguished road
Hello everybody,
I often have to apply very low under-relaxation factors (e.g. 0.1) for the Heat Flux being sent from CFX to Ansys in a MFX coupling and rather large factors for temperature and displacement (e.g. 0.75). What is the exact numerical or physical explanation for the instability that arises from higher under-relaxation factors with regard to the heat flux?
Best & Thx,
MainzerKaiser 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
Sustained thermal stresses from FSI analysis Hamjaj ANSYS 0 May 10, 2013 11:26
ANSYS/CFX, MFX FSI: piezoelectric microfluidic channel pumping problem gogohusky CFX 0 December 12, 2011 13:44
FSI - verification force mapping with mfx Vinzent CFX 15 September 18, 2011 18:00
FSI Transient Thermal Analysis Abduri CFX 0 December 8, 2008 21:00
Info: Short Course On Thermal Design of Electronic Equipment Arnold Free Main CFD Forum 0 August 10, 1999 10:18

All times are GMT -4. The time now is 04:48.