CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Running, Solving & CFD

Changing patches vs changing mesh for multiple cases

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

LinkBack Thread Tools Display Modes
Old   March 7, 2011, 17:37
Default Changing patches vs changing mesh for multiple cases
Greg Givogue
Join Date: Aug 2010
Location: Ottawa Canada
Posts: 57
Rep Power: 9
Greg Givogue is on a distinguished road

I have a questions about setting patches as inlets and outlets to achieve various angle of attacks on bodies. I would like to run several cases on one body at different angles of attack. I thought the easiest way to do this would be to orient the body in the x-direction in CAD and then mesh a rectangular domain - like a windtunnel. For the direct flow scenario (in the x-direction) I named the patch ahead of the body as an inlet and the the patch directly behind the body as on outlet. Simple enough, and this set-up gives good results. To get an angle of attack I assigned 2 patches as inlets and 2 patches as outlets and changed the initial conditions to include a y-component for U. In this set-up I then have an inlet patch touching an outlet patch...

I'm having issues with the cases involving an angle of attack and I need to question every setting. I would really appreciate some feedback - thanks in advance for your help and time!

Attached Images
File Type: jpg patches.jpg (16.0 KB, 6 views)
Greg Givogue 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
Number of cells in mesh don't match with size of cellLevel colinB OpenFOAM Native Meshers: snappyHexMesh and Others 13 July 4, 2017 16:27
2D Mesh Generation Tutorial for GMSH aeroslacker Open Source Meshers: Gmsh, Netgen, CGNS, ... 12 January 19, 2012 04:52
changing Mesh with known new points for shape kilerskill OpenFOAM 15 February 16, 2011 04:21
How to delete selected cells from mesh and update boundary patches kaka OpenFOAM Mesh Utilities 2 November 26, 2009 05:17
unstructured vs. structured grids Frank Muldoon Main CFD Forum 1 January 5, 1999 11:09

All times are GMT -4. The time now is 03:10.