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

Question on mass flow BC

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 12, 2010, 11:40
Default Question on mass flow BC
  #1
Member
 
James Baker
Join Date: Dec 2009
Posts: 35
Rep Power: 7
fijinx is on a distinguished road
If I am defining a fixed mass or volumetric flow rate on a simulation that uses wedge symmetry, do I define the fraction of flow rate for the cross section that I have modeled or the mass flow rate for the entire model? Thanks!
fijinx is offline   Reply With Quote

Old   April 15, 2010, 05:17
Default
  #2
Senior Member
 
Aram Amouzandeh
Join Date: Mar 2009
Location: Vienna, Vienna, Austria
Posts: 184
Rep Power: 8
mabinty is on a distinguished road
the flow rate is calculated with the modeled cross section, hence a isosceles triangle with opening angle of 5.

cheers,
aram
mabinty is offline   Reply With Quote

Old   April 15, 2010, 11:37
Default
  #3
Member
 
James Baker
Join Date: Dec 2009
Posts: 35
Rep Power: 7
fijinx is on a distinguished road
Thank you! So just to be clear (to make sure I understand) if I were doing pipe flow, and I wanted a mass flow of 100kg/sec at the inlet of the whole pipe I would only put 5kg/sec for the inlet at the wedge?
fijinx is offline   Reply With Quote

Reply

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
particle, parcel and mass flow rate balance flybird FLUENT 0 May 24, 2007 10:44
Mass flow boundary condition vivian Main CFD Forum 0 April 10, 2006 23:32
Mass flow rate Neser CFX 4 February 14, 2004 01:27
Determine mass flow rate along flow path Atit Koonsrisuk CFX 2 October 5, 2003 04:47
How are the mass flux and mass flow rate defined? Miles CD-adapco 2 November 7, 2002 09:45


All times are GMT -4. The time now is 00:38.