CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion > OpenFOAM Native Meshers: snappyHexMesh and Others

snappyHexMesh doesn't merge points?

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

LinkBack Thread Tools Display Modes
Old   December 19, 2009, 17:16
Default snappyHexMesh doesn't merge points?
New Member
Axel Tietjen
Join Date: Dec 2009
Location: Hamburg, Germany
Posts: 19
Rep Power: 10
Axel_T is on a distinguished road

I'm writing my diploma thesis about the usage of OpenFOAM for engine development, and have only experience of one month.
My aim is the simulation of a small pre-chamber (about 20mm in diameter), and so I have to generate good mesh for it.

But after meshing with snappy and slicing it in paraFoam, it shows some very tiny cells that could better have been merged. I've attached a screenshot with the problem-areas highlighted.

I have already tried varying every parameter in the snappyHexMeshDict, that seems to be involved with snapping and merging, but it shows no success.

Can anyone help me to merge those cells?
I don't want to have too small cells because the solution seems to get more unstable with smaller cells.

I'd appreciate any hint.

Attached Images
File Type: jpg mesh_7.jpg (75.9 KB, 36 views)
Axel_T 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
Sliding Interface issues philippose OpenFOAM Running, Solving & CFD 7 May 5, 2014 03:13
SnappyHexMesh not generate mesh first time mavimo OpenFOAM Mesh Utilities 4 August 26, 2008 07:08
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 07:36
about merge mesh lian Main CFD Forum 3 February 29, 2008 11:47
extreme points problem Lipo Wang Main CFD Forum 2 August 18, 2004 03:15

All times are GMT -4. The time now is 06:52.