[nands_bullwalker]

dear sir
m having difficulty in writing code for specific heat as a udf for fluent the code i wrote is shown below
DEFINE_SPECIFIC_HEAT(my_user_cp, c,t)
{
real cp;
real temp = C_T(c,t);
cp = 1.1105*pow(10,-5)*pow(temp,3) - 0.0031078*pow(temp,2) - 1.478*temp + 4631.9;
return cp;
}

the problem is, when m hooking into fluent ....an error is coming "invalid type conversion: float -> pointer to char."
so m unable to solve my problem

so please suggest me the way to get through this hurdle n also if its not the write way of hooking the udf or the code is wrong then please tell me the exact way of coding .... note that m using ANSYS 14.0

i will b thankful to u

[Hershey]

Do you have the directive:

#include "udf.h"

at the top of your UDF above the DEFINE_SPECIFIC_HEAT Macro?