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

Numerical method for the k-epsilon production term

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

LinkBack Thread Tools Display Modes
Old   January 23, 2003, 17:13
Default Numerical method for the k-epsilon production term
Posts: n/a

Thanks for your help with my previous question on interpreting the production term in the k-epsilon equation. However, I am uncertain how to evaluate this term in a system of equations for finite element analysis in 2D.

Would I expand the production term in the k- and epsilon equations into 5 differential terms (each containing u, v, or uv), then apply a shape function to each of these variables, multiply by a weighting function, and integrate (by parts, where necessary) to produce a set of equations in integral form?

Or would I treat it as a scalar, first calculating it using values from a previous iteration (like how the turbulent eddy viscosity is evaluated, for example).

Sorry if this is more FEM than CFD for this forum. Thanks in advance for any help!

  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
Numerical Method Andrew Hayes Main CFD Forum 5 June 17, 2005 09:17
Numerical Method for groundwater flow in 3D Linda Main CFD Forum 0 February 13, 2003 19:55
Numerical diffusion error Z.Zeng Main CFD Forum 8 October 22, 1999 09:06
Numerical method for free surface flow? Oleg Melnik Main CFD Forum 4 January 22, 1999 06:28
Solid-Liquid Two Phase Flow Numerical Simulation with the Finite Element Method Qing Hao Main CFD Forum 2 January 9, 1999 00:31

All times are GMT -4. The time now is 21:47.