|January 11, 2002, 11:06||
Pressure Boundary Condition
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).
|Thread||Thread Starter||Forum||Replies||Last Post|
|Wind turbine simulation||Saturn||CFX||34||October 16, 2014 05:27|
|mixed inflow/outflow downstream boundary condition question||peob||OpenFOAM Running, Solving & CFD||2||August 14, 2014 09:07|
|Water subcooled boiling||Attesz||CFX||7||January 5, 2013 04:32|
|Pressure Boundary condition||abishek||FLUENT||1||July 28, 2008 08:14|
|Pressure boundary condition||C-H Kuo||Main CFD Forum||9||August 28, 1998 12:07|