[ctmagic]

Hi, Eeverybody!
I'm using fluent 17.

my udf is as bellowacturally, it's partly copied from the Ansys help)
#include "udf.h"；
#inclue "math.h";
.......

DEFINE_VR_RATE(reforming_rate,c,t,re,mw,yi,rr,rr_t )
{
..........
if (!strcmp(re->name, "reaction-1")) -----line 49
{
*rr=r1v
}
else if (!strcmp(re->name, "reaction-2"))
{
*rr=r2v
}
else if (!strcmp(re->name, "reaction-3"))
{
*rr=r3v
}
else
{
/* Message("Unknown Reaction\n"); */
}
}

when the UDF is interpreted in fluent, a error ( line 49:structure reference not implemented) occured.

Is there any parse error? Or should I include more head files?

Many thanks in advance!

[AlexanderZ]

was

*rr=r1v

new

*rr=r1v;

may be this one? On the other hand, problem comes from lines above #49, check what is inside your ...

best regards

[ctmagic]

Missing of symbol ";" is another obvious error, thanks a lot!
However,i'm afraid that the problem mentioned in my post is about the variable "r", which is defined by fluent macro.
I have tried to used the example udf in fluent help, the error still occured"structure reference not implemented".
it make me crazy.Could you please tell me why? Many thanks!

the example udf from fluent helps is as below:

#include "udf.h"

DEFINE_VR_RATE(myrate,c,t,r,mw,yi,rr,rr_t)
{
/*If more than one reaction is defined, it is necessary to distinguish
between these using the names of the reactions. */
if (!strcmp(r->name, "reaction-1"))
{
/* Reaction 1 */
}
else if (!strcmp(r->name, "reaction-2"))
{
/* Reaction 2 */
}
else
{
/* Message("Unknown Reaction\n"); */
}
/* Message("Actual Reaction: %s\n",r->name); */

}

Originally Posted by AlexanderZ

was

*rr=r1v

new

*rr=r1v;

may be this one? On the other hand, problem comes from lines above #49, check what is inside your ...

best regards

[AlexanderZ]

Use compile instead of interpretation

best regards

[ctmagic]

Hi, AlexanderZ!Thanks, it works!

Originally Posted by AlexanderZ

Use compile instead of interpretation

best regards