[shivakumar]

Hi all,
I have been working on motion of fluid in side the aircraft drop tank. For my initial case fluid is moving to and fro. For this case I used the following code but is yeilding error. what is the problem? Any help would be greatly appreciated.

#include "udf.h"

DEFINE_ZONE_MOTION(fmotion, omega, axis, origin, velocity, time, dtime)
{
if(time<10)
{
omega = 10;
}
else
omega=0;

N3V_D(velocity,=,0.05*sin(omega*time), 0.0, 0.0);
}

Error reads

..\src\motion.c(14): warning: not enough actual motion parameters for macro 'NV_D'
..\src\motion.c(14): error C2109 subscripts requires pointer or error type
..\src\motion.c(14): error C2109 subscripts requires pointer or error type
..\src\motion.c(14): error C2109 subscripts requires pointer or error type

Thank you