|April 6, 2011, 11:04||
Air-water interface in a channel flow using VOF method
Join Date: Apr 2011
Location: Daejeon, Korea
Posts: 1Rep Power: 0
I'm trying to simulate a two-phase channel flow using VOF model.
There are two inlets (one is for water, the other is for air) and one outlet in the present geometry.
In order to know elevation and shape of the air-water interface and velocity fields, I'll change flow rate or air as a control variable.
The domain is filled with water initially, and air layer will be created beneath the top wall using air injection.
Since both fluids have different inlet velocitis, I think "Open channel flow" option is not applicable. And there is a large vertical distance between the two inlets.
Thus, I made two zones (one is for water, the other is for air).
However, phase selection of Cell Zone Conditions is coupled between the two zones.
Models: Multiphase - VOF
Phases: air - Primary Phase
water - Secondary Phase
Cell Zone Conditions: air_interior - (air, fluid) <-- I hope
water_interior - (water, fluid) <-- I hope
Boundary conditions: air_inlet - velocity-inlet
water_inlet - velocity-inlet
air_outlet - pressure-outlet
water_outlet - pressure-outlet
Could you tell me how to separate the phase selection or how to modify geometry configuration?
Otherwise, is there anyone who can provide appropriate examples?
Have a nice day :-)
|two-phase flow, vof|
|Thread||Thread Starter||Forum||Replies||Last Post|
|mass flow rate not conserved in turbomachine, interface defined wrong?||wildli||FLUENT||1||March 24, 2010 21:23|
|Complex problem: Open Channel Flow||lett||FLUENT||17||April 9, 2009 11:56|
|VOF modelling Open Channel flow||Rodi||FLUENT||2||August 11, 2007 14:15|
|open channel flow vof model||Yong||CD-adapco||3||June 21, 2005 06:54|
|Convective Heat Transfer - Heat Exchanger||Mark||CFX||6||November 15, 2004 16:55|