|July 25, 2012, 10:08||
Doubts about MRF model
Join Date: Jul 2012
Posts: 16Rep Power: 6
I have a couple of questions about the MRF model available in fluent,
First, i do not understand why the rotational speed is specified for the rotating fluid domain and then the rotating wall, such as the blades of a VAWT for my case, are set to rotate at 0 rpm or rad/s relative to the adjacent cell zone, doesn't this means that the relative rotational speed between the blades and the fluid is zero? so the blades arenīt experiencing any fluid passing by at all...
in second place im currently working in a 3d simulation of a VAWT, a gorlov turbine to be more precise, my meshing strategy consists on enclosing the blades on a cylinder of fluid wich is rotating inside a bigger rectangular and stationary domain. As the hole cylinder is surrounded by the stationary fluid i'm not sure if the MRF model requires or even allows to set the top and bottom circular boundaries of the cylinder as interfaces.
Can anyone giveme any explanation about it?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Superlinear speedup in OpenFOAM 13||msrinath80||OpenFOAM Running, Solving & CFD||18||March 3, 2015 06:36|
|New implemented algebraic Reynolds stress model||volker||OpenFOAM||13||October 21, 2013 00:01|
|multiphaseInterFoam for RAS turbulence model||chiven||OpenFOAM Bugs||7||August 23, 2011 02:52|
|MRF and Euler model||DropsandSimulations||OpenFOAM Running, Solving & CFD||0||September 4, 2009 05:20|
|multi fluid mixture model issue||rystokes||CFX||3||August 9, 2009 19:13|