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

Mass fraction and volume fraction

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 26, 2011, 05:02
Default Mass fraction and volume fraction
  #1
New Member
 
Join Date: Sep 2011
Posts: 12
Rep Power: 5
eric weddle 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
eric weddle is offline   Reply With Quote

Reply

Tags
components, mass, multi, 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
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Difference between Volume Fraction and Mass Fraction in CEL foo7 CFX 0 September 21, 2011 08:45
alphaEqn.H in twoPhaseEulerFoam cheng1988sjtu OpenFOAM Bugs 14 September 18, 2011 13:46
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
On the damBreak4phaseFine cases paean OpenFOAM Running, Solving & CFD 0 November 14, 2008 22:14


All times are GMT -4. The time now is 07:25.