CFD Online Logo CFD Online URL
Home > Forums > CFX

1-way FSI Setting

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

LinkBack Thread Tools Display Modes
Old   June 18, 2007, 07:06
Default 1-way FSI Setting
Posts: n/a
I am trying to Uni-directional(1-way) FSI simulatin with ANSYS Multiphysics V.11. Rather than using Ansys classics, I am using Ansys Simulation(in Workbench) and CFX. What I want to know is the optimal settings of the number of stagger iteration and number of coeffieient loops.

In FEA analysis, Contact analysi is perfomed with "Static Structural analysis" with total 100 load steps. In CFX, for each fluid-solid interface, "/Boundary details/mesh mothon/send to ansys" is set to "None" for 1-way FSI, and ANSYS fileds are solved before CFX (/Solver control/external coupling/Solution sequence Control)

Then, in CFX, is it nessary that Max iterations number(max. stgger iteration) (/Solver control/External coupling/Coupling step control) is greater than 1 ? Because any data are not sent to ANSYS, it may be sufficient to solver Ansys 1 times and more coefficient loops are nessary for CFX computation in my thought. ( So, max stagger iteration =1 )

In CFX(/Sover control/External coupling/Coupling data transfer control),what's the meaning of Under relaxtion factor, and does it affect the Maximum number of stagger iteration?


  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
Cells with t below lower limit Purushothama Siemens 2 May 31, 2010 21:58
BCs in an FSI simulation of a flexble pipe vivekcfd OpenFOAM 10 January 8, 2010 05:14
fsi sun Siemens 8 January 20, 2009 00:17
how to extend FSI 2D codes to 3D, need advises abouziar Main CFD Forum 1 May 30, 2008 04:08
Warning 097- AB Siemens 6 November 15, 2004 05:41

All times are GMT -4. The time now is 11:38.