CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Gas liq MT

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   May 11, 2010, 10:23
Default Gas liq MT
New Member
Join Date: Nov 2009
Posts: 21
Rep Power: 10
vinaynitrkl is on a distinguished road
I am calculating O2 mass transfer across gas-liquid. (air and deaerated water)
2D mesh, mesh size=0.01m, ht=3.2m, b=0.172m
*Segregated Unsteady solver
*Mixture model: 2 phase with slip vel and imp. body force
*k-eps realizable model
*Species transport model
*2 mass transfer mechs :Forward and back : Mechanism constant rate(is it ok?)
*gas vel = 0.1 m/s, water vel. =0.03m/s
*O2 mass frac. (liq)= 0.4*e-6
*O2 mass frac (air)=.23
*time step=0.01
*Rest default

Result: reversed flow in 2 faces on pressure-outlet 3.
And 0.098 as mass fractn of O2 in liq. where fluidization hasn't even started.
Attached Images
File Type: jpg gasliqmt.jpg (70.8 KB, 6 views)
vinaynitrkl is offline   Reply With Quote


Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Liq Nitrogen Injection in Hot Nitrogen Gas Stream Ijaz CFX 0 February 25, 2009 02:24
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 12:02
Gas pressure question Dan Moskal Main CFD Forum 0 October 24, 2002 22:02

All times are GMT -4. The time now is 23:04.