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

Magnus Effect Model

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 4, 2000, 13:23
Default Magnus Effect Model
  #1
Dahvid Brown
Guest
 
Posts: n/a
I am trying to make a 2D model of the Magnus effect of a rotating cylinder in Fluent5. The results Fluent is giving me are 15% to 50% lower than the experimental data given from Rouse and Prandtl. My entire domain model is large enough to prevent wall effects. I used grid packing next to the cylinder with the heigth of the first row along the wall of the cylinder equal to 1e-5m. I am using the k-epsilon RNG viscous model with 2-layer zonal near-wall treatment. My solutions converged at e-6 residuals. I am sure that my results are not grid dependent, and I am using the default values for atmospheric conditions of air. I am unable to find a better method to bring my results closer to experimental answers and would appreciate any suggestions to assist me.
  Reply With Quote

Old   February 24, 2000, 11:59
Default Re: Magnus Effect Model
  #2
Park Geun Hong
Guest
 
Posts: n/a
Hi Dahvid Brown! I think that Realizable k-e model will be serve more accuracy. (Fluent 5.0 User Guide vol.2 9.2.7) Realizable k-e model provides good performance for flows involving rotation, seperation, recirculation... Good luck to you!
  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
species transport model or mixture model? achaokaoyan Main CFD Forum 0 July 10, 2010 11:52
How to model "chimney effect" using Fluent? Feidao Li FLUENT 10 January 14, 2010 10:43
Effect of restitution coefficient: Eulerian model Kushagra Mittal CFX 0 August 7, 2007 00:11
Problem with Joulebs effect source term in the energy equation galaad OpenFOAM Running, Solving & CFD 0 January 19, 2006 13:01
Ground Effect & Turbolence Model Stefano Siemens 3 December 17, 2002 07:59


All times are GMT -4. The time now is 20:56.