Fluent and kinetic theory for viscosity and conductivity

heksel8i · November 19, 2013, 11:48

Hey!

How well the kinetic theory theory works for viscosity and conductivity compared to polynomial functions and with respect to the temperature range 100K-3000K. Any benchmarks, own experiences or opinions would be appreciated.

Cheers

misagh · November 20, 2013, 15:42

Hi
the accuracy of the polynamial functions for conductivity and viscosity depends strongly to the kind of simulation and the problem.
maybe writing UDF for properties is the best way to get an accurate result rather than using rough polynamial functions.
Bests.

November 19, 2013, 11:48	Fluent and kinetic theory for viscosity and conductivity	#1
heksel8i Member hekseli Join Date: Mar 2013 Posts: 49 Rep Power: 13	Hey! How well the kinetic theory theory works for viscosity and conductivity compared to polynomial functions and with respect to the temperature range 100K-3000K. Any benchmarks, own experiences or opinions would be appreciated. Cheers

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Kinetic theory inputs	Mohsin	FLUENT	1	September 6, 2011 00:44
Kinetic air props model - conductivity HALF?	Chris Bailey	FLUENT	1	March 7, 2006 10:38
kinetic theory in Fluent	Tschumperle Denis	FLUENT	0	October 17, 2000 09:48

November 20, 2013, 15:42		#2
misagh Member misagh Join Date: Apr 2012 Posts: 64 Rep Power: 14	Hi the accuracy of the polynamial functions for conductivity and viscosity depends strongly to the kind of simulation and the problem. maybe writing UDF for properties is the best way to get an accurate result rather than using rough polynamial functions. Bests.