CFD Online Logo CFD Online URL
Home > Forums > ParaView

ParaView Mass Flow Rate

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

LinkBack Thread Tools Display Modes
Old   December 10, 2012, 17:49
Default ParaView Mass Flow Rate
New Member
Join Date: Dec 2012
Posts: 5
Rep Power: 4
jotter is on a distinguished road

I am currently doing some CFD on an air intake system for a combustion engine, I am trying to find the best intake shape to get an even mass flow into each piston. I've created the mesh and geometry in Salome and run icoFoam in OpenFoam. The next thing I am looking to do is to find the mass flow rate from each outlet in ParaView.

I have done a search on this forum and on Google but I haven't found an answer to my question.

At the moment I am "clipping" through various planes leaving the outer cells of the outlet. At this stage is it possible to only select cells on the outlet boundary? As at the moment I am using the extract selected filter, and it is very hard to just select the cells on the boundary.

Then I am using the calculator filter to create an array of rho*U_Y cell values (the y axis is normal to the outlet boundary). Then using the integrate variables filter this array is integrated across the selected cells to give a mass flow rate(I am assuming that the integrate filter integrates across the cells form the extract filter only). This method gave me a reasonable value for one piston but for the other 3 it gave values much too low.

Is this method correct? I am assuming that the calculator and integrate filters only work on the cells selected from the extract selected filter. This method seems to be very long winded and tedious, especially when selecting the cells for the boundary, is there a possibility of automating some of this process? As I will be varying the geometry I can see this becoming a tiresome task.

Does anybody know of any ParaView tutorials on topics similar to this? As the ParaView wiki and user guide doesn't seems to cover any of the topics I am using.

jotter 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
CFX turbo - Mass flow rate Vashishth Patel CFX 7 April 3, 2014 20:33
Mass Flow Rate is not converging destgir448 CFX 5 December 11, 2010 06:55
negative global mass flow rate Gimli FLUENT 0 April 21, 2006 07:17
mass flow rate error Masood FLUENT 0 May 22, 2005 00:32

All times are GMT -4. The time now is 23:06.