CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

k epsilon model implementation problem

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

LinkBack Thread Tools Display Modes
Old   July 19, 2011, 09:39
Default k epsilon model implementation problem
Join Date: Jun 2009
Posts: 64
Rep Power: 8
jyothishkumar is on a distinguished road

Can anyone help me in sorting out the following problem:

I have written a navier stokes solver for laminar and turbulent flow (for 2d channel). With turbulent flow my centreline velocity is increasing upto the centre section of the duct and then it decreases towards the exit. My pressure value from inlet towards the exit is continuously decreasing.
It is clearly explained in the file attached herewith. Please download the document to see the plot for the u velocity at the exit section and at the middle section.

I am using the standard wall function (equilibrium wall function) for the near node (node near to the wall).

many thanks

Attached Files
File Type: doc u_velocity_k-epsilon.doc (31.0 KB, 12 views)
jyothishkumar 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
Use of k-epsilon and k-omega Models Jade M Main CFD Forum 12 June 2, 2015 13:16
Polyflow Simulation with ViscoElastic Model memory problem sid2909 ANSYS 0 May 10, 2010 05:27
non-linear k-epsilon model implementation problems Saidi Main CFD Forum 2 March 4, 2010 14:23
SimpleFoam k and epsilon bounded nedved OpenFOAM Running, Solving & CFD 1 November 25, 2008 21:21
Radiation problem for car model aero FLUENT 1 February 4, 2007 00:30

All times are GMT -4. The time now is 15:20.