HELP PLEASE! Mixture fraction
 

Hi All,

I am having some difficulties determining mixture fraction in fluent. I am simulating gas oil (c16h29) and my mixture is comprised of c16h19, o2 and n2 (i want to determine the mixture fraction before combustion begins). How can i determine the mixture fraction of my gaseous fuel in a given plane in Fluent?

Any suggestion(s) will be highly appreciated.

Counting on your assistance.

James

Re: HELP PLEASE! Mixture fraction
 

define it by mass fraction.

Re: HELP PLEASE! Mixture fraction
 

Hi, how is it done? If you do it by using mass fraction, will the results be normalized?

Thanks again for the help.

James

Re: HELP PLEASE! Mixture fraction
 

hi

for this u have to adapt the region whr u want to key in the volume fraction of the mixture...do adapt...>region give x and y values and click on mark..then close now go to initialize and initialize the values and then go to solve---->initialize--->patch...and under phases select ur phase and select volume fraction and in values give the values..

hope it works bye