|December 7, 2010, 23:57||
Species mass fraction
Join Date: Dec 2010
Posts: 2Rep Power: 0
I am new user of Fluent and have one basic questions on using F_Y(c,t,i).
I solve a mass species equation for a aqueous mixture of N2 and O2, Now, I would like to calculate difference of their ionic concentration, I am wondering that if it is possible to use F_y(c,t,1)-F_y(c,t,0)?! How I can find out that what the i for O2 and N2 is?! For example, if i=1 denotes o2 or n2?!
If there is any easier way to calculate difference of ionic concentrations of O2 and N2 in the UDF?!
Thank you in advance!
|December 10, 2010, 20:14||
Real Name :)
Join Date: Jan 2010
Location: United States
Posts: 180Rep Power: 7
The species are numbered according to their order in the Fluent panel (if O2 is first, i=0). Also, you probably want to use C_YI(c, t, 0) and C_YI(c,t,1). This will give you the cell concentration, not F_YI (f,t,i), which is the face concentration.
|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|
|PB: Saving mass fraction of species on two points with an udf||biget.a||FLUENT||2||July 23, 2009 03:06|
|On the damBreak4phaseFine cases||paean||OpenFOAM Running, Solving & CFD||0||November 14, 2008 22:14|
|mass fraction of species||Ahmed||FLUENT||0||April 18, 2007 11:57|
|gradient of species mass fraction||zhou||FLUENT||0||March 3, 2004 23:55|