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

Pressure BC's for ABL modelling

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 7, 2010, 13:04
Default Pressure BC's for ABL modelling
  #1
New Member
 
Jesper
Join Date: May 2010
Posts: 9
Rep Power: 16
jgpeder is on a distinguished road
Dear all,

I'm trying to model the wind of the atmospheric boundary layer (in a 2d rectangular domain).
My idea is to specify a logarithmic velocity profile at the inlet, using the timeVaryingMappedFixedValue bc.
At the top of the domain I will just have a fixed velocity and zerogradient at the outlet. I guess the ground should be considered as a rough wall.

My question is, how to specify the pressure at the boundaries.
I'm quite new to OpenFoam and not very familiar with all the different types of bc's. Any help would be appreciated.

I'm planning to use simplefoam and the k-epsilon turbulence model.
Thanks.

-Jesper
jgpeder is offline   Reply With Quote

Old   June 9, 2010, 15:33
Default
  #2
Senior Member
 
Daniele
Join Date: Feb 2010
Posts: 134
Rep Power: 16
Daniele111 is on a distinguished road
Hi
I have the same problem! Do you resolve it?
Daniele111 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
Pressure BCs or Periodic BCs for model of frost on vertical surface? andy.eco FLUENT 2 March 26, 2010 03:02
Pressure enigma. Sara Main CFD Forum 22 July 30, 2009 05:46
Pressure Rise Error emueller CFX 0 May 5, 2009 12:08
Outflow vs Pressure Outlet BCs visuja FLUENT 1 April 27, 2009 04:58
Gas pressure question Dan Moskal Main CFD Forum 0 October 24, 2002 23:02


All times are GMT -4. The time now is 07:36.