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

Outlet BC inside fluid domain

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By clapointe

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 17, 2019, 00:44
Default Outlet BC inside fluid domain
  #1
New Member
 
Helvines Aquino
Join Date: Aug 2016
Posts: 13
Rep Power: 10
nesca87 is on a distinguished road
Dear all,

I have a model like simpleFoam/windAroundBuildings with the same inlet and outlet BC, but there is a heat-exchanger building inside the domain. This building has some fans which functioned as compressors. To make the mesh simpler, is it possible to draw the fans just as circle planes and outlet is applied as BC?

Any suggestions will be very helpful. Thank you in advance.
nesca87 is offline   Reply With Quote

Old   May 19, 2019, 18:55
Default
  #2
Senior Member
 
Join Date: Aug 2015
Posts: 494
Rep Power: 15
clapointe is on a distinguished road
It sounds like you want a momentum/energy source inside your domain. You can do this with fvOptions -- look for "momentumSource" or "energySource" in the code.

Caelan
clapointe is offline   Reply With Quote

Old   May 20, 2019, 22:17
Default
  #3
New Member
 
Helvines Aquino
Join Date: Aug 2016
Posts: 13
Rep Power: 10
nesca87 is on a distinguished road
Quote:
Originally Posted by clapointe View Post
It sounds like you want a momentum/energy source inside your domain. You can do this with fvOptions -- look for "momentumSource" or "energySource" in the code.

Caelan
Do you mean I have to insert fvOptions in system/controlDict? Or do I have to modify the solver?
nesca87 is offline   Reply With Quote

Old   May 20, 2019, 23:22
Default
  #4
Senior Member
 
Join Date: Aug 2015
Posts: 494
Rep Power: 15
clapointe is on a distinguished road
If the solver is built to use fvOptions (ie equations have fvOptions as a source term), then you do not need to modify the solver. If a file called "fvOptions" exists -- in constant or system, depending on OF version I think -- then the solver will read it (and some sort of message will be displayed in the terminal or log) and apply the chosen option. Try searching the tutorials for "scalarSemiImplicitSource" or "vectorSemiImplicitSource" for examples.

Caelan
nesca87 likes this.
clapointe is offline   Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Difficulty in calculating angular velocity of Savonius turbine simulation alfaruk CFX 14 March 17, 2017 07:08
Sudden increase the residual of Maxwell's equations hsezsz CFX 2 October 13, 2016 07:58
Velocity vector in impeller passage ngoc_tran_bao CFX 24 May 3, 2016 22:16
[ANSYS Meshing] Solid inside Fluid - Multizone meshing supercolli ANSYS Meshing & Geometry 2 July 9, 2014 14:20
Floating point exception: Zero divide liladhar CFX 11 December 16, 2013 05:07


All times are GMT -4. The time now is 18:03.