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

boundary conditions of impressible jet injection

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

LinkBack Thread Tools Display Modes
Old   May 8, 2016, 11:22
Default boundary conditions of impressible jet injection
New Member
Join Date: Sep 2015
Posts: 1
Rep Power: 0
lipf200283 is on a distinguished road
Sponsored Links
Hello Foamers,

I am trying to simulate a air jet injection into an heated open ambient. The air is coming out from a pipe (diameter 2mm) with a velocity of 5 m/s and a temperature of 300k. The pressure and temperature of heated open ambient are 1atm and 500k respectively. Obviously, it is an incompressible case, so I used incompressible solver “simpleScalarTransportFoam” that created by myself(implementing a transport equation of scalar “T” into the simpleFoam, and I have tested this solver on other cases, the results have showed the solver is correct).

But, when I calculated jet injection, several boundary conditions were tried while all results were wrong.

As initial case I am considering a 2D rectangular geometry. Inlet is set on the top side, other sides(left, right, bottom) are all open ambient.

If you have any suggestions regarding left, right and bottom boundary conditions(about 0/U, 0/p, 0/T), Please give me some ideas. Any help would be very much appreciated.
lipf200283 is offline   Reply With Quote
Sponsored Links


boundary conditions, impressible flow, jet injection

Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Setting rotating frame of referece. RPFigueiredo CFX 3 October 28, 2014 05:59
GETVAR Error in Multiband Monte Carlo Radiation Simulation with Directional Source silvan CFX 3 June 16, 2014 09:49
An error has occurred in cfx5solve: volo87 CFX 5 June 14, 2013 17:44
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Turbulent Mass Injection Boundary Conditions B. Laubacher Main CFD Forum 6 October 16, 1999 11:56

Sponsored Links

All times are GMT -4. The time now is 03:23.