CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Mixing occuring faster than the experiment problem

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

LinkBack Thread Tools Display Modes
Old   September 4, 2007, 09:40
Default Mixing occuring faster than the experiment problem
Posts: n/a
Hello, I'm doing a simulation investigating water mixing in tanks. The model involves two phases (fresh & saline water) and use of turbulent jets. I've used the RNG K-E model and VOS multi-phase model. It's an unsteady simulation and I've used a time step of 0.1 secs. Although FLUENT predicts velocity fields very accurately, mixing occurs much faster than the experiment. I've tried changing under relaxation factors with no success. Any ideas why this is happening? Any suggestions?

Please, help!!!
  Reply With Quote

Old   September 5, 2007, 21:05
Default Re: Mixing occuring faster than the experiment pro
Posts: n/a
Turbulence model is the likely culprit.
  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
Problem with Mixing plane Mitpostdoc FLUENT 0 July 26, 2011 15:31
Gambit - meshing over airfoil wrapping (?) problem JFDC FLUENT 1 July 11, 2011 06:59
Mixing occuring faster than the experiment problem Lila Main CFD Forum 1 September 5, 2007 11:48
problem with MFR model for multiphase mixing tanks Srinivas Main CFD Forum 1 November 7, 2005 15:16
extremely simple problem... can you solve it properly? Mikhail Main CFD Forum 40 September 9, 1999 10:11

All times are GMT -4. The time now is 22:25.