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

FSI. simple pipe case crashes

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 19, 2018, 12:59
Default FSI. simple pipe case crashes
  #1
Senior Member
 
Join Date: Jan 2015
Posts: 150
Rep Power: 8
Svensen is on a distinguished road
Hello,

I've tried to simulate an FSI case - flow through an elastic pipe.
Fluent and Transient Structural were used.

I've set up both participants and joined them using a system coupling block.
Then I've defined forth and back data transfers between the components.

Unfortunately, during a simulation I've got an error, saying:
Quote:
(DP 0) Element 720 located in Body "FFF\vessel" (and maybe other elements) has become highly distorted. You may select the offending object and/or geometry via RMB on this warning in the Messages window. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size). You may need to improve your mesh to obtain elements with better aspect ratios. Also consider the behavior of materials, contact pairs, and/or constraint equations. If this message appears in the first iteration of first substep, be sure to perform element shape checking. Named Selections for the offending element can be created via the Identify Element Violations property on the Solution Information Object.
I've tried to decrease the time step, but with no success. I'm wondering why so simple case crashes...

Could anyone help with this case?
Thank you in advance!

The project archive is here: https://yadi.sk/d/gPxaKqrmTBQO8A
Svensen is offline   Reply With Quote

Reply

Tags
ansys, fluent, fsi, fsi 2-way coupling, transient structural

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
[ANSYS Meshing] Meshing a Simple Pipe With Different Diameters Adnann ANSYS Meshing & Geometry 2 May 16, 2016 03:38
Simple Pipe Bend Geometry not converging Zen OpenFOAM Running, Solving & CFD 0 March 16, 2016 08:46
Help Required With Simple Test Case steph79 OpenFOAM Pre-Processing 4 August 3, 2010 07:45
Free surface boudary conditions with SOLA-VOF Fan Main CFD Forum 10 September 9, 2006 12:24
fluid flow fundas ram Main CFD Forum 5 June 17, 2000 21:31


All times are GMT -4. The time now is 21:33.