[ali.ylcn]

Hi everyone,

I wrote the UDF for the temperature change of air heat transfer coefficient. Fluent accepted 16.0 smoothly. But when I look at the heat transfer coefficient at the end of the program, Fluent has made an incorrect calculation.
For example at 486 Kelvin, when calculating Fluent 0,1194W/mK, it would be 0.03937W/mK.
Where am I doing wrong.

k = 1,5207E-11*T³ - 4,8574E-08*T² + 1,0184E-04*T - 3,9333E-04

You can see the UDF below.
Thank you for everything



#include "udf.h"

DEFINE_PROPERTY(knew,c,t)

{

real ktc;
real temp = C_T(c,t) ;

ktc = 1.5207*temp*temp*temp/100000000000 - 4.8574*temp*temp/100000000 + 1.0184*temp/10000 - 3.9333/10000 ;

return ktc;

}