CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM

problem with boundary conditions

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

LinkBack Thread Tools Search this Thread Display Modes
Old   November 26, 2018, 01:59
Default problem with boundary conditions
Mondal131211's Avatar
Join Date: Sep 2018
Location: Canberra ACT
Posts: 68
Rep Power: 7
Mondal131211 is on a distinguished road
Hi Foamers,

I am trying to simulate "turbulent natural convection along an isothermal vertical plate" (my geometry attached). Geometry dimension is (6m x 2m x 1m). I am using buoyantSimpleFoam. It will be an open boundary condition. So, now I can not understand how to set an open boundary condition (velocity, pressure, and temperature) for my problem. I have considered my geometry as follows,

lower patch- inlet
upper patch-outlet

The hotplate (333k) has created from the left wall by using toposet. I just set my geometry. is there anyone who can tell me how should I proceed for solving my problem? Which BC could be applicable for Velocity, pressure, and temperature especially. Any type of help is welcome.
Attached Images
File Type: png geometry 2.png (10.6 KB, 13 views)
Mondal131211 is offline   Reply With Quote

Old   November 26, 2018, 19:11
Senior Member
Join Date: Aug 2015
Posts: 494
Rep Power: 14
clapointe is on a distinguished road
First, what version of openFoam are you using? This will determine the flavor of bc that you'll need. However, for open boundaries you generally need boundary conditions that support entrainment. This is usually pressureInletOutletVelocity for velocity and a total pressure (possibly hydrostatic). Temperature is usually fine with inletOutlet. It will also likely be easier if you made the whole left boundary the hot plate.

clapointe is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Centrifugal fan-reverse flow in outlet lesds to a mass in flow field xiexing CFX 3 March 29, 2017 10:00
Out File does not show Imbalance in % Mmaragann CFX 5 January 20, 2017 10:20
Question about heat transfer coefficient setting for CFX Anna Tian CFX 1 June 16, 2013 06:28
An error has occurred in cfx5solve: volo87 CFX 5 June 14, 2013 17:44
Boundary conditions? Tom Main CFD Forum 0 November 5, 2002 01:54

All times are GMT -4. The time now is 12:44.