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

whats the difference between patch and faceZones?

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

Like Tree1Likes
  • 1 Post By immortality

LinkBack Thread Tools Display Modes
Old   January 18, 2013, 16:21
Default whats the difference between patch and faceZones?
Senior Member
immortality's Avatar
Join Date: Oct 2012
Location: Iran
Posts: 2,205
Rep Power: 18
immortality is on a distinguished road
I saw these when each is used for determining the flow rate?
"Mass flow examples
Usually OpenFOAM solvers define a face-flow field phi that only has to be summed on patches

type patchExpression;
accumulations (
patches (
expression "phi";
verbose true;
On faceZones this is a bit more complicated as the orientation of the face has to be taken into account:

type swakExpression;
valueType faceZone;
zoneName beforeFilter;
expression "phi*flip()";
accumulations (
verbose true;
namsivag likes this.
immortality 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
Problem with cyclic boundaries in Openfoam 1.5 fs82 OpenFOAM 36 January 7, 2015 01:31
Fluent msh and cyclic boundary cfdengineering OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 48 January 25, 2013 04:28
Cyclic Boundary Condition Luiz Eduardo Bittencourt Sampaio (Sampaio) OpenFOAM Running, Solving & CFD 36 July 2, 2012 12:23
Cyclic BC's: Possible face ordering problem? (Channel flow) sega OpenFOAM Native Meshers: blockMesh 3 September 28, 2010 12:46
Using createPatch in place of couplePatches sripplinger OpenFOAM Mesh Utilities 8 November 13, 2009 08:14

All times are GMT -4. The time now is 18:34.