|August 12, 2013, 10:44||
Species Transport: How to determine the mass flux from concentration gradients?
Join Date: Dec 2012
Posts: 8Rep Power: 4
I am modeling steady state diffusion using the species transport model for two species A & B. The geometry is a cube of air of 1 cubic centimeter with an orifice at the center of one face. The opposite face has been set as an inlet vent with defined mass fraction of species A (greater), and the lower surface of a bounded cavity beyond the orifice is set as an outlet vent to a lower mass fraction of species A (lesser).
After running the simulation, I have obtained a reasonably realistic concentration distribution of species A in the volume, i.e. I have the values of the concentration of species A at every point in the volume.
My problem is, how do I calculate the resultant rate of mass diffusion across the cavity in terms of [M][T]^(-3)?
Please help me.
|concentration gradient, diffusion, mass flux, species transport|
|Thread||Thread Starter||Forum||Replies||Last Post|
|problems concerning mass conservativity in bubbleFoam with custom scalar transport||cutter||OpenFOAM Programming & Development||3||February 10, 2015 05:25|
|Species Mole and Mass Fraction Macro||combustion||FLUENT||15||October 29, 2013 04:57|
|Questions for a species transport problems (snapshots attached)||aleisia||FLUENT||2||October 9, 2011 04:40|
|How to specify surface flux of a species?||ked||FLUENT||16||February 9, 2006 21:14|
|total mass flux correction for compressible fluid?||Francesco Di Maio||Main CFD Forum||0||August 21, 2000 04:23|