|
[Sponsors] |
November 9, 2006, 18:40 |
turbulence intensity at inlet
|
#1 |
Guest
Posts: n/a
|
I am trying to implement k-epsilon model for a complex geometry involving recirculation. Unless I use the inlet turbulence intensity greater than 10% (usually specified as 2-5%), the code is not converging. I wasnt sure, if this would spoil the accuracy of k-epsilon model. Does anybody has any experience with the effect of inlet boundary conditions for k and epsilon.
|
|
November 16, 2006, 01:13 |
Re: turbulence intensity at inlet
|
#2 |
Guest
Posts: n/a
|
You should wait till after several hundred times of iteration, it may change to converge. i don't know what is your Reynolds number. if Re is not very high you can set the kinetic energy and turbulence dissipation to 0.1 with k-epsilon model.
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Question on Turbulence Intensity | Eric | FLUENT | 1 | March 7, 2012 05:30 |
Turbulence intensity in fully devloped pipe flow - Reference | Shocktrain | Main CFD Forum | 0 | October 14, 2010 07:58 |
High turbulence intensity | wenfengxie | FLUENT | 1 | April 16, 2010 13:00 |
turbulence intensity for skyscraper | antonella grassano | FLUENT | 0 | October 13, 2004 07:50 |
Low Turbulence Intensity Simulation | J. McCarthur | Main CFD Forum | 1 | October 26, 1999 17:17 |