CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Pressure Boundary Condition

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 11, 2002, 10:06
Default Pressure Boundary Condition
  #1
Matt Umbel
Guest
 
Posts: n/a
I am attempting to implement a pressure boundary condition in a 1-D code. For an ideal gas, I would like to specify total pressure and total temperature at the boundary and would like the boundary condition to:

1. Impose total pressure and total temperature if

the flow is entering the domain. 2. Impose total pressure as the static pressure if the

flow is exiting the domain and flow is subsonic. 3. Impose nothing (everything extrapolated from inside

domain) if flow is exiting domain and is supersonic.

This condition should represent (I believe) a plenum type pressure boundary.

I have no problem making the code follow condition (1); however, I am not sure about the implementation for (2) and (3). Some codes I have worked with have imposed this condition, though I have never seen the implementation. Does anyone know of a reference that discusses anything close to the above boundary condition? Specifically, I am looking for actual equations and information on the algorithim (as oppose to just a vague description of what to set).

Thanks, Matt
  Reply With Quote

Reply

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
Wind turbine simulation Saturn CFX 60 July 17, 2024 05:45
mixed inflow/outflow downstream boundary condition question peob OpenFOAM Running, Solving & CFD 3 February 3, 2017 10:54
Pressure boundary condition C-H Kuo Main CFD Forum 18 September 16, 2016 03:19
Water subcooled boiling Attesz CFX 7 January 5, 2013 03:32
Pressure Boundary condition abishek FLUENT 1 July 28, 2008 08:14


All times are GMT -4. The time now is 23:01.