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

internal boundary, define a volume flow (velocity) from the inside of the domain

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 7, 2013, 14:52
Default internal boundary, define a volume flow (velocity) from the inside of the domain
  #1
New Member
 
RB
Join Date: Aug 2013
Posts: 5
Rep Power: 13
rbaud is on a distinguished road
Hi,

I'm trying to thermally model a "computer kit", considering I know the volume flow (or/and the velocity) and the heat load.

It’s important to understand that my kit is inside the domain (i.e. none of his faces attach the boundary of the domain.

Pretty new user of openFoam, I had read a lot through the forum (thanks you) and I had a significant amount of unsuccessful "try". As I'm running out of idea, I was wondering if some you have some ideas/hints.

I’m using buoyantBoussinesqPimpleFoam.

What I have done (my best shot…):
- Use baffles (wall BC) to define the geometry of my kit. (a cuboid) leaving the “suction” and the “discharge” of the kit free
- Use cyclic Fan BC to generate the flow (pressure/velocity based on fan curves), cyclic patch define on the middle of the kit.
- Set a temperature jump through the cyclic boundary to simulate my “heat load”

That seems to ”work” fine, but I’m not satisfy as I don’t really know the fan characteristic neither the pressure drop through my kit and I much prefer to directly set the velocity/volume flow.

Does someone can help me? The case seems trivial..
Many thanks,
R.
Attached Images
File Type: png kit illustration.png (10.1 KB, 17 views)
rbaud 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
Wind turbine simulation Saturn CFX 60 July 17, 2024 06:45
Difficulty in calculating angular velocity of Savonius turbine simulation alfaruk CFX 14 March 17, 2017 07:08
Radiation interface hinca CFX 15 January 26, 2014 18:11
UDF FOR UNSTEADY TIME STEP mayur FLUENT 3 August 9, 2006 11:19
meshing F1 front wing Steve FLUENT 0 April 17, 2003 13:37


All times are GMT -4. The time now is 19:17.