CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS

Problems with circular shapes in FSI simulations

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 15, 2009, 09:36
Default Problems with circular shapes in FSI simulations
  #1
New Member
 
ronald
Join Date: Sep 2009
Posts: 10
Rep Power: 7
kezman is on a distinguished road
Hello,

I am working on a impact model of the human head. Skull, Cerebrospinal fluid (CSF) and the human brain.
First I made a very simple model without the brain. Just a simple square filled with the CSF. There is a force applied (starts at 3e-5 seconds ends at 9e-5 seconds ) at the front of the square which represents the impact.
BUT when I model the brain in this square (see it as a circle in a square, around the square is the CSF) the simulation stops always at the timestep when the force will come up.

I tried all different kind of meshes and it didn't help. Maybe the problem is the density of the brain and the fluid, because they are almost simular??

end time = 3e-3
time step = 3e-5

Hope someone can help me.

Kezman
kezman is offline   Reply With Quote

Reply

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
Problems with circular shapes in FSI simulations kezman CFX 3 October 3, 2012 16:07
Needed Benchmark Problems for FSI Mechstud Main CFD Forum 4 July 26, 2011 12:13
Problems with circular shapes in FSI simulations kezman ANSYS Meshing & Geometry 1 September 16, 2009 11:24
problems simulations enrico STAR-CCM+ 3 August 11, 2009 09:54
how to extend FSI 2D codes to 3D, need advises abouziar Main CFD Forum 1 May 30, 2008 04:08


All times are GMT -4. The time now is 03:54.