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

Problems using dynamic mesh and 6dof solver

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 3, 2006, 17:45
Default Problems using dynamic mesh and 6dof solver
Posts: n/a
I am trying to investigate the 6dof solver by running a validation case against the analytical result for throwing a ball vertically in the air.

However, I am having two problems.

Firstly, I am trying to put a bounding box around the ball and set it as a passive zone. The idea being that I can have an unstructured grid around the ball, and a structured grid everywhere else - then use layering as the primary form of dynamic meshing. But for some reason, I cannot get layering to work when the mesh has passive dynamic zones and once the ball has moved the distance of the closest cell I get a negative cell volume error.

Secondly, if I use an unstructured mesh everywhere I am finding that it will not remesh the non-moving boundary walls and again, once the ball has moved far enough I get a negative cell volume.

Does anyone have an idea of what I might be doing wrong? Thanks, Brett.
  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
Dynamic mesh, hinged flap Randre FLUENT 37 August 9, 2014 10:40
radial turbine blade simulation with dynamic mesh 6dof(fluent) mamyjooooon FLUENT 0 April 7, 2011 14:28
Dyanmic mesh + 6DOF + rotating frame xhield FLUENT 0 December 10, 2009 05:02
6DOF model with sliding mesh Laurent FLUENT 0 January 27, 2009 05:00
6dof error in fluent's dynamic message manoj FLUENT 2 November 11, 2005 11:49

All times are GMT -4. The time now is 12:39.