CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Constant pressure despite temperature changes?

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 6, 2013, 00:35
Default Constant pressure despite temperature changes?
Join Date: Jul 2012
Posts: 33
Rep Power: 13
c_dowd is on a distinguished road
I'm running a reacting foam case where I have edited the solver to ensure the density is constant. My problem is, I'm getting laminar flows (despite having an LES turbulence model turned on), which I can only attribute to the uniform pressure field in my results. The pressure field should not be uniform, as I have temperatures of up to 2000 in the flow.

As far as I can work out, this is in some way a result of my boundary conditions, yet no matter what combination I try I can't seem to solve it. I have a 3d cylindrical mesh with inlets on the sides and an outlet on the top. My inlets have a fixed velocity and zerogradient pressure, the outlet has zerogradient velocity and fixed pressure. I've tried various combinations of fixedfluxpressures and wavetransmissive BCs, yet still my pressure is perfectly uniform. Ideas?
c_dowd is offline   Reply With Quote


density, firefoam, pressure, reacting foam, temperature

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
Simulation of a single bubble with a VOF-method Suzzn CFX 21 January 29, 2018 00:58
is internalField(U) equivalent to zeroGradient? immortality OpenFOAM Running, Solving & CFD 7 March 29, 2013 01:27
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
Pressure rising with temperature Koranten FLUENT 0 August 19, 2009 05:57
flow simulation across a small fan jane luo Main CFD Forum 15 April 12, 2004 17:49

All times are GMT -4. The time now is 16:13.