CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM

Fixed flow rate with cyclic BC

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 20, 2015, 08:10
Default Fixed flow rate with cyclic BC
  #1
New Member
 
Marc-Aurele
Join Date: Apr 2015
Posts: 1
Rep Power: 0
Marc-Aurele is on a distinguished road
Hello,

I would like to know if it is possible to fix a flow rate with a cyclic BC.
My goal is to have a fully developed flow on all the pipe (= without an entrance region).
I use OpenFoam 2.2.2

Thank you

Marc-Aurčle
Marc-Aurele is offline   Reply With Quote

Old   July 27, 2015, 14:03
Default
  #2
Cyp
Senior Member
 
Cyprien
Join Date: Feb 2010
Location: Stanford University
Posts: 251
Rep Power: 10
Cyp is on a distinguished road
Hi Marc-Aurele,

you can go to through this document https://web.stanford.edu/~csoulain/PORE_SCALE/Chap2.pdf from page 11 to 13. The idea is to add an average pressure drop as a source term in your momentum equation. The pressure you solve is then the deviation to the average pressure. Hence, you can consider cyclic condition to the "pressure" field.

Cheers,
Cyprien
Cyp is offline   Reply With Quote

Reply

Tags
cyclic boundry condition, flow rate, fully developed flow

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
libOpenSMOKE Tobi OpenFOAM Programming & Development 507 March 4, 2016 05:30
Cyclic boundary conditions concerning channel with constant flow rate pascool OpenFOAM Pre-Processing 1 November 16, 2012 14:04
Fixed Flow rate and outlet Continuity Problem mrshb4 OpenFOAM 1 March 10, 2012 15:32
How to calculate phase flow rate? sangramroy FLUENT 0 January 11, 2012 14:02
Discrete Phase & Mass Flow Rate MagnusZeus FLUENT 0 December 2, 2011 18:57


All times are GMT -4. The time now is 12:18.