CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

Problem with snappyHexMesh

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

LinkBack Thread Tools Display Modes
Old   March 7, 2014, 05:26
Default Problem with snappyHexMesh
Join Date: Mar 2013
Posts: 96
Rep Power: 7
giack is on a distinguished road
Hello to all,
I have a strange problem in the generation of the mesh with snappyHexMesh. When I created it, after the snap step, seems that some cells near the boundary are loss or not follows the boundary. I know that there are some thread about this problem but the solutions presented in their don't work. During the snap step appears this warming:

FOAM Warning : Displacement (-4.016316e-07 1.993513e-06 5.287614e-08) at mesh point 14338 coord (0.009952381 0.04995016 -0.0009597589) points through the surrounding patch faces
Smoothing displacement
Displacement smoothed in = 8.69 s
Moving mesh ...

Is this warming related to the error?

My geometry is very simple: a rectangular with a cylinder inside.
I attach some pictures related to the error.

Someone know what is the problem?
Thanks to all for the willingness
Attached Images
File Type: jpg 3.jpg (12.8 KB, 39 views)
File Type: jpg 35.jpg (78.6 KB, 43 views)
File Type: jpg 35-2.jpg (48.8 KB, 35 views)
giack is offline   Reply With Quote

Old   March 11, 2014, 08:05
New Member
Join Date: Feb 2014
Location: pune,India
Posts: 26
Rep Power: 6
avinashjagdale is on a distinguished road
Hi giack,

I too faced the same problem.
To solve it I increased my edge feature refinement level and max refinement in surfaceRefinement.
Still the warning showed up. But this time I didn't get any error.
I checked it with CheckMesh and it seems fine.

When I very high refined blockMesh at start. and It didn't showed any warning at that time.

Hence it must be related to refinement.

I am attaching snaps of my mesh with FOAM warning
Attached Images
File Type: jpg trailingpins.jpg (99.4 KB, 40 views)
avinashjagdale is offline   Reply With Quote

Old   September 18, 2014, 10:03
New Member
Join Date: Mar 2013
Location: turkey
Posts: 8
Rep Power: 7
bob91 is on a distinguished road
if you solve problem, can you explain me ? I have same problem. I havent been solved this problem what ı do .
bob91 is offline   Reply With Quote


snappyhexmesh, snappyhexmesh 3d

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
Problem with snappyHexMesh: do not work CjjJoy OpenFOAM Native Meshers: snappyHexMesh and Others 8 February 8, 2014 02:13
Can I solve this problem by Fluent? Kai_kc FLUENT 1 October 27, 2010 05:29
stitchMesh and snappyHexMesh gdbaldw OpenFOAM 0 December 23, 2009 03:09
natural convection problem for a CHT problem Se-Hee CFX 2 June 10, 2007 06:29
Adiabatic and Rotating wall (Convection problem) ParodDav CFX 5 April 29, 2007 19:13

All times are GMT -4. The time now is 06:01.