CFD Online Logo CFD Online URL
Home > Forums > FLUENT

about preview mesh motion

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

LinkBack Thread Tools Display Modes
Old   July 8, 2004, 11:35
Default about preview mesh motion
Posts: n/a

I failed to preview mesh motion when I used the dynamic mesh model for my 3D case.I set the step size=T/10000=0.0001s .But after one step,Preview-Dynamic-Mesh failed because negative cell volume detected.So I reset the stepsize=0.00001s,after 10 steps,it quit too.

I am sure that my udf is ok because it works well in 2d case.

Could you give me any suggestions especially about the mesh?



  Reply With Quote

Old   July 8, 2004, 12:13
Default Re: about preview mesh motion
Posts: n/a
First of all I hope the mesh is fine enough. 1.Check with size function variationand size function rate in remeshing. 2.Also try varying No. of iteration in Smoothing. I hope this will help u

Regards DEVAN
  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
Negative Volume during Mesh Motion Analysis giov_ingr FLUENT 2 December 13, 2013 07:09
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 06:42
external flow with snappyHexMesh chelvistero OpenFOAM 11 January 15, 2010 20:43
Help with Mesh motion preview Mustafa Ayad FLUENT 2 January 20, 2009 23:40
Mesh motion Hex cells vs tets kev4573 OpenFOAM Running, Solving & CFD 6 December 13, 2007 15:37

All times are GMT -4. The time now is 06:02.