|May 14, 2012, 19:48||
A form of the buoyant force
Join Date: Feb 2010
Posts: 42Rep Power: 9
I'm little confused about the form of the buoyant force in two-phase flows.
I wanted to add this force into twoPhaseEulerFoam, which is given by:
alpha*grad(p) ----Eq. (1)
This term is one of the interchanging forces in twoPhaseEulerfoam
For phase 1 (or disperse phase),
Vp*(rhoa - rhob)*g ----Eq. (2)
where Vp is the volume of the particle.
I've check the MPIX code where Eq. (1) is adopted and each phase also has the gravity force. Eq. (2) is used in some articles as well.
Which form should be used for the two-phase flow?
Fluent does not show which form is used for multiphase flows in its manual.
Thanks for your comments in advance.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Force can not converge||colopolo||CFX||13||October 4, 2011 22:03|
|how can i set up flow over an aiship with buoyant force?||hadieliasi||Main CFD Forum||0||August 20, 2011 04:19|
|User-defined force transfer across FSI interface||vivekcfd||CFX||7||March 10, 2010 21:43|
|Derivation of Momentum Equation in Integral Form||Demonwolf||Main CFD Forum||2||October 29, 2009 20:53|
|DEFINE_CG_MOTION and pressure force||Teo Fumagalli||FLUENT||0||April 11, 2008 10:25|