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

[Help] Boundary conditions for turbulent flow (kEpsilon)

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 24, 2011, 09:35
Default [Help] Boundary conditions for turbulent flow (kEpsilon)
  #1
New Member
 
Join Date: May 2011
Posts: 2
Rep Power: 0
schaumy is on a distinguished road
Hello,

I want to model a turbulent air stream by using kepsilon model. I am pretty new to CFD and therefore stuck defining the right boundary conditions.

According to my virgin openFoam knowledge I do have to define the mesh-boundaries (patch,empty,wall etc) and the initial flow conditions (p,U,(k),(epsilon),(omega),....)

Now my problem: I want to model turbulent air flow in a dump-combustor using kEpsilon model. I do have information about density,viscosity, inlet-speed and turbulence intensity. Do I have to calculate k and epsilon manually in order to define a correct inlet value?

Thanks for reading (and wasting your valuable time ) in advance.

Regards,

schaumy
schaumy is offline   Reply With Quote

Old   May 24, 2011, 09:48
Default
  #2
New Member
 
Join Date: May 2011
Posts: 2
Rep Power: 0
schaumy is on a distinguished road
Using the search functions helps alot

/thread
schaumy is offline   Reply With Quote

Reply

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
Boundary conditions low Mach number flow lost.identity Main CFD Forum 0 November 28, 2010 05:44
Proper Pressure Boundary Conditions for Buoyant Flow mchurchf OpenFOAM 0 March 25, 2010 13:16
Heat Transfer boundary conditions for engine coolant flow simulation rajuks Main CFD Forum 0 February 15, 2010 10:04
Internal flow simulation boundary conditions Kishore FLUENT 1 July 10, 2007 11:42
Please help with flow around car modelling! Tudor Miron CFX 17 March 19, 2004 20:23


All times are GMT -4. The time now is 20:13.