CFD Online Logo CFD Online URL
Home > Forums > CFX

Difference between Volume Fraction and Mass Fraction in CEL

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

LinkBack Thread Tools Display Modes
Old   September 21, 2011, 08:45
Default Difference between Volume Fraction and Mass Fraction in CEL
New Member
Join Date: Aug 2011
Posts: 10
Rep Power: 6
foo7 is on a distinguished road
Hello there.

I'm doing with a multiphase multicomponent flow, dealing with volume fractions and mass fractions all the time.

Right now I'm writing some expressions within CEL and I have some doubts.

Let's say I have two phases (Phase 1 and Phase 2) each one with 2 components (Comp A and Comp B in Phase 1 and Comp C and Comp D in Phase 2).

1 - When I wirte "Phase 1.Volume Fraction" I get the Phase 1 volume fraction and when I write "Phase 1.Mass Fraction" I get Phase 1 mass fraction. Right?

2 - When I write "Phase 1.Comp A.Volume Fraction" I get Comp A volume fraction within Phase 1 and when I write "Phase 1.Comp A.Mass Fraction" I get Comp A mass fraction within Phase 1. Right?

3 - What should I write to get Comp A volume and mass fraction relative to the whole system, i.e. considering the volume and mass ocupied also by Phase 2???

Thanks a lot
foo7 is offline   Reply With Quote


cel, component, fraction, phase, volume

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
Please Help.....Insufficient Catalogue Size Paresh Jain CFX 18 September 25, 2015 04:47
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
air bubble is disappear increasing time using vof xujjun CFX 9 June 9, 2009 07:59
volume fraction, Mass fraction and Bulk Mass flow Dr.jones CFX 1 January 25, 2006 05:32

All times are GMT -4. The time now is 00:59.