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

[blockMesh] Determining exact coordinates of points on a mesh: unexpected asymmetric results

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 5, 2016, 08:00
Default Determining exact coordinates of points on a mesh: unexpected asymmetric results
Senior Member
Join Date: Aug 2015
Posts: 127
Rep Power: 10
arieljeds is on a distinguished road
Hi everyone,

This question might be pretty stupid but I'm running a case for flow past a cylinder and I noticed that my results were not symmetric, as expected (the postive y side consistently has higher velocity, etc). I tried doing a case for Re = 40 and using a slip condition on the cylinder to see if I could get perfect potential flow, which I do, except that when I use streamlines, it's obvious that the two sides are not symmetric (see image).

I've attached my blockMeshDict too...

I'd appreciate any help in spotting the asymmetry here!

Thanks in advance

Attached Images
File Type: jpg streamlines.jpg (72.6 KB, 6 views)
Attached Files
File Type: txt blockMeshDict.txt (14.8 KB, 1 views)
arieljeds is offline   Reply With Quote


asymmetry, blockmeshdict, potential flow, slip b.c.

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
Gambit problems Althea FLUENT 22 January 4, 2017 03:19
[snappyHexMesh] No layers in a small gap bobburnquist OpenFOAM Meshing & Mesh Conversion 6 August 26, 2015 09:38
[snappyHexMesh] determining displacement for added points CFDnewbie147 OpenFOAM Meshing & Mesh Conversion 1 October 22, 2013 09:53
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 06:42
[snappyHexMesh] external flow with snappyHexMesh chelvistero OpenFOAM Meshing & Mesh Conversion 11 January 15, 2010 19:43

All times are GMT -4. The time now is 12:21.