CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

Eddy Viscosity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 20, 2005, 04:19
Default Eddy Viscosity
  #1
ashish
Guest
 
Posts: n/a
Hi friends, I am modeling free surface transient water flow problem with CFX. I am applying inhomogeneous model of multiphase free surface and a homogeneous k-eps turbulence model. As the time progresses (say after 1, 2...5, 10 seconds of results Water eddy visocity goes on increasing with time. Why does that happen ? length scale of water is 0.07m . what i suppose is Eddy dissipation is not proper on the boundary. Is that the fault with turbulence model ?
  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boussinesq eddy viscosity assumption siw Main CFD Forum 2 February 17, 2011 12:30
Link between eddy viscosity and subgrid-scale turbulent viscosity in LES Marvin Main CFD Forum 6 December 4, 2009 11:08
Question about eddy viscosity ratio limit Piti CFX 2 January 17, 2008 16:49
eddy viscosity Mike CFX 1 April 4, 2006 13:12
Vertical eddy viscosity in channal flow? Liu Main CFD Forum 0 June 15, 2004 21:07


All times are GMT -4. The time now is 11:42.