CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

multicomponent flow-component mass fraction at inlet

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 5, 2012, 00:49
Default multicomponent flow-component mass fraction at inlet
  #1
New Member
 
mengyue
Join Date: Sep 2009
Posts: 17
Rep Power: 7
mengyue1 is on a distinguished road
hi guys, i am simulating the diffusion of h2 in a containment. The mixture consisting of h2 and h2o is injected into a containment, the total mass flow rate of the mixture is 1.0 kg/s and the mass fractions of h2 and h2o are 0.2 and 0.8, respectively. At first, the containment is full of h2o and air. in CFX-Pre, i set the total mass flow rate and the component(h2 and h2o) mass fraction.
when the calculation is completed, i find the the h2 mass fraction at inlet is not 0.2 which i set in the CFX-Pre. (By the way, i use areaAve(H2. mass fraction)@INLET to obtain the h2 mass fraction at inlet). i am confused about this, dose anyone know how to solve this problem?
Thanks in advance!
mengyue1 is offline   Reply With Quote

Reply

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
Species mass flow inlet lorenz FLUENT 3 March 15, 2012 08:26
Mass Flow Inlet and wilhelms FLUENT 1 November 16, 2011 20:04
Mass Flow Inlet with Velocity specification bernarde STAR-CCM+ 1 December 4, 2009 00:13
mass flow inlet boundary condition vivian FLUENT 5 April 21, 2006 06:23
Target Mass Flow Rate Nitin FLUENT 6 March 12, 2004 06:39


All times are GMT -4. The time now is 15:58.