CFD Online Discussion Forums

CFD Online Discussion Forums (
-   CFX (
-   -   Specific heat (

Andrea May 24, 2004 09:22

Specific heat
I'm using 2 mass fraction equation in cfx 4.4.

If I use USRSPH routine I can only set the Cp of all the mixture? Or I can set the value of the Cp of the background fluid?



Jeff May 30, 2004 01:55

Re: Specific heat
If your mass fractions are very small (ie. trace amounts) you can get away with setting the background fluid only. Otherwise, yes, you need to set the mixture CP and CPBAR. Fortunately this is easy as it is a straight mass fraction weighted summation of each component including the background fluid.


All times are GMT -4. The time now is 14:51.