[ravindra]

hey friends,
i have to write udf for modifying radial distribution function for eulerian granular simulation for fluidised bed reactor.i dont know haw to do ....please help me out.....

[ravindra]

this is the udf which i hv written ......but there is error while iterating.

#include "udf.h"

DEFINE_PROPERTY(cell_radial,c,t)
{
real rad_dis;
real a_a;

a_a=1-pow(((1.-C_VOF(c,t))/0.63),(1/3));
rad_dis=(3/5)*pow(a_a,-1);

return rad_dis;
}