[richard ben]

Hi everyone,

I am doing species transport simulation and have no idea some theory in fluent.

What's is mixing law, mass weighted mixing law, ideal gas mixing law and kinetic theory?

For example, to calculate the heat capacity of the mixture,

I guess the mixing law is based on the molar fraction of each species

and the mass weighted mixing law is based on the mass fraction.

Is this correct? and what is ideal gas mixing law?

I will appreciate it a lot for your reply.

[A CFD free user]

Hey
All these are some generic laws to define thermodynamic properties for a mixture which are usually function of molar fraction, temperature and some other parameters. I think you can find more details in Fluent user guide. But if you don't, have a look at thermodynamics book regarding ideal and non-ideal solutions. Mixing laws are very important concept in solutions thermodynamic.