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

[snappyHexMesh] An extremely simple cube mesh made by snappy,failed.

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 14, 2013, 22:03
Default An extremely simple cube mesh made by snappy,failed.
  #1
Senior Member
 
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 838
Rep Power: 17
sharonyue is on a distinguished road
Hi guys,

Recently I found a simple problem in snappy that is it cannot get smooth edge on a cube in which edges are not parallel to the axis.no matter how I set the parameters.for example: in snap control. I even set it like this:
Code:
snapControls
{
   //- Number of patch smoothing iterations before finding correspondence
    //  to surface
    nSmoothPatch 15;

    //- Relative distance for points to be attracted by surface feature point
    //  or edge. True distance is this factor times local
    //  maximum edge length.
    tolerance 4;

    //- Number of mesh displacement relaxation iterations.
    nSolveIter 400;

    //- Maximum number of snapping relaxation iterations. Should stop
    //  before upon reaching a correct mesh.
    nRelaxIter 5;
    nFeatureSnapIter 50;
    implicitFeatureSnap true; 
}
but it didnot change anything.

but if the cube's edge is parallel with the x,y,z axis.snappy can get absolutely fine mesh on condition that DONT run snap part.if run the snap part.it can get a smooth edge but which is not a cube.

Back to the cube's edge is not parallel to the axis.How can I get the fine mesh?
Attached Images
File Type: jpg 1.jpg (91.0 KB, 18 views)
File Type: jpg parallel with snap part.jpg (86.6 KB, 18 views)
File Type: jpg parallel without snap part.jpg (93.9 KB, 16 views)

Last edited by sharonyue; May 14, 2013 at 22:39.
sharonyue is offline   Reply With Quote

Old   May 14, 2013, 22:25
Default
  #2
Senior Member
 
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 838
Rep Power: 17
sharonyue is on a distinguished road
Sorry guys, I figure it out. There is nothing in my emesh~.
sharonyue is offline   Reply With Quote

Reply


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
Star CCM Overset Mesh Error (Rotating Turbine) thezack Siemens 7 October 12, 2016 11:14
[mesh manipulation] Importing Multiple Meshes thomasnwalshiii OpenFOAM Meshing & Mesh Conversion 18 December 19, 2015 18:57
unstructured mesh generation with strictly constrained boundary in simple space goujl Mesh Generation & Pre-Processing 0 January 29, 2015 10:44
[Gmsh] 2D Mesh Generation Tutorial for GMSH aeroslacker OpenFOAM Meshing & Mesh Conversion 12 January 19, 2012 03:52
[ICEM] Problem making structural mesh on a surface froztbear ANSYS Meshing & Geometry 1 November 10, 2011 08:52


All times are GMT -4. The time now is 14:50.