CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

[ANSYS Meshing] Fluent crashing with dynamic mesh

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

LinkBack Thread Tools Display Modes
Old   September 15, 2018, 23:46
Default Fluent crashing with dynamic mesh
New Member
Join Date: Apr 2015
Posts: 13
Rep Power: 5
gdbb89 is on a distinguished road
Hello all,

I'm trying to simulate a tilted metal plate being dropped into a tank of water. The solution method is realizable k-epsilon with scalable wall function. I am using a dynamic mesh and the 6DOF module. The version of ANSYS I'm running is v17.0 and so I have to utilize a compiled UDF to specify the 6DOF inertial properties.

The solver seems to run fine until the mesh becomes stretched. The residuals suddenly diverge very, very rapidly. In fact, it's in the matter of a single timestep (of dt = 0.0001 sec).

My mesh is uniformly "fine" with an inflation later of 3 around the plate. This is the initial mesh (with VOF isosurface):

And this is the last mesh before the solver fails:

To me, this does not look like I've done a good job setting up the remeshing. Properties of my dynamic mesh:

At this point, when I try to run the solver/hit "calculate", Fluent simply crashes on me. Could it be that my cell skewness is dangerously close to 1.0? If so, how do I go about fixing that? If not, what might it be?


gdbb89 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
Transfer of mesh from Meshing to Fluent destroys the mesh balrog_f FLUENT 9 July 28, 2018 10:02
[ICEM] different zones/regions ICEM for fluent dynamic mesh valbort ANSYS Meshing & Geometry 2 June 26, 2018 18:14
Local mesh refinement definition in a DEFORMING dynamic mesh zone using Dynamic Mesh Emanuele88 FLUENT 0 February 9, 2016 11:39
FLUENT dynamic mesh set-up question ral007 FLUENT 0 February 15, 2011 12:28
Dynamic mesh + apaption in Fluent 12 ? klunker FLUENT 0 September 23, 2009 08:19

All times are GMT -4. The time now is 05:39.