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

Heated vertical channel flow RANS

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

LinkBack Thread Tools Display Modes
Old   November 24, 2008, 10:37
Default Hi everybody, i'm trying to
Pattyn Eric
Join Date: Mar 2009
Posts: 61
Rep Power: 10
ep4 is on a distinguished road
Hi everybody,

i'm trying to simulate the flow in a vertical channel due to natural convection, with each plate at a constant temperature. I use the k epsilon turbulence model.
I have choosen a cyclic boundary condition in the streamwise and spamwise directions.
For the two heated plate, i have pd-> fixedFluxBuoyantPressure, p->calculated, no slip condition, fixedValue for T and zeroGradient for k and epsilon.
I use second order discretisation schemes.

Running buoyantSimpleFoam, i have a bad convergence with a fine mesh and the computation with a coarser much crashes after some iterations.

The number of boundary conditions being quite limited, i don't see where is the problem.

Could someone help me?

Thank you

ep4 is offline   Reply With Quote


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
DNS for heated pipe flow dpalko OpenFOAM Running, Solving & CFD 2 October 21, 2017 04:15
Fluent-Flow over heated cylinder Khyati Main CFD Forum 0 July 12, 2006 00:17
natural convection in a vertical heated duct. SHANTANU CHAKRABORTY Phoenics 1 June 18, 2001 09:12
Transient laminar free convection between heated vertical plates with entrace effects henry pastohr FLUENT 0 June 23, 2000 09:55

All times are GMT -4. The time now is 19:53.