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

[ANSYS Meshing] Minimum Element Size in Design Modeler?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 26, 2015, 09:39
Default Minimum Element Size in Design Modeler?
  #1
New Member
 
Andrew B
Join Date: Jun 2015
Posts: 1
Rep Power: 0
abouma is on a distinguished road
I'm an undergrad student doing summer research, and trying to model a particle collision between two simple spherical particles. The particles have diameters in the range of 50 - 200 microns. I am trying to run a 2D axisymmetric simulation using Ansys Explicit Dynamics in Workbench 15.0. I can refine the mesh near the contact point using a body sizing mesh with a sphere of influence and the mesh generates just fine (with element sizes of about 1 micron). When the simulation runs though, I immediately get "Zero or negative element volume" errors. If I increase the element size I can get it to run, but I lose the resolution I want to have. I think it might be a precision problem, if the elements are so small that the volume rounds to zero. Is there any way around this? Any help or pointers would be appreciated.
abouma is offline   Reply With Quote

Reply

Tags
explicit dynamics, mesh 2d, micro nano scale, minimum size, negative cell volume

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
[Gmsh] 3D Mesh conversion from gmsh-2.5.0 to OpenFOAM Ancioi OpenFOAM Meshing & Mesh Conversion 17 January 8, 2019 23:50
[Other] dynamicTopoFVMesh and pointDisplacement RandomUser OpenFOAM Meshing & Mesh Conversion 6 April 26, 2018 07:30
[snappyHexMesh] crash sHM H25E OpenFOAM Meshing & Mesh Conversion 11 November 10, 2014 11:27
Problems in compiling paraview in Suse 10.3 platform chiven OpenFOAM Installation 3 December 1, 2009 07:21
Design Modeler to ICEM..... Joe CFX 0 January 24, 2008 03:39


All times are GMT -4. The time now is 09:56.