2ddp - two-dimensional double precs. solver i'm using. And i'm beginner at Ansys Fluent and Coding. For modelling,  i need to use UDF but every time i tried there is a always same error. Here is a code and error

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line 26: parse error.

`#include' expects "FILENAME" or

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#include #include

/* ---- use a user defined scalar to track material properties of the domain */

enum { PERM, N_REQUIRED_UDS };

/* --- misc defines */

#define PERM_EXP_VOID 35.0 #define PERM_EXP_MATERIAL -20.0 #define PERM_ADJ_FALSE 0 #define PERM_ADJ_TRUE 1 #define UDS_PERM(alpha) log10(alpha)

/* --- permeability function for scalar-0 */

#define WEIGHT 1.0e20 /*

--- weighting co-eff in linearized eqn */

#define WEIGHT2 1.0e20 #define INLET_VELOCITY 10.0

/* --- inlet velocity in m/s */

/* ---- define criteria for various possible configurations */

#define MAT_CHANNEL(x,y,z) ((y=0.75)) #define MAT_STEP(x,y,z) ( ((x

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