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-   -   defile new material with dependency of "temperature-enthalpy" (http://www.cfd-online.com/Forums/fluent/115560-defile-new-material-dependency-temperature-enthalpy.html)

ahvz April 2, 2013 09:26

defile new material with dependency of "temperature-enthalpy"
 
hi,

how to define a new materials with temperature dependent properties into FLUENT ?

I need to define a materials with different temperature- enthalpy values...

regards,

oj.bulmer April 3, 2013 11:14

Do you mean, standard state enthalpy should change as a function of temperature?

OJ

diamondx April 3, 2013 11:16

scroll down in material properties, use polynomial for CP, and enter the coefficient in function of temperature...

ahvz April 3, 2013 11:18

I mean, the below relation should be mentioned for the transient analysis for instance:

temperatures 0 10 20 30 40 50

enthalpies 0 1e8 2e8 4e8 5e8 6e8




regards,

diamondx April 3, 2013 11:21

ok, the way i will do it, plot a graph in excel, extract the equation of the curve.
put the coefficient in fluent.

If Mr. bulmer has something better, please...


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