fluent导入UDF初始化错误

柒染

用的是二维，把一片区域设置为多孔介质，其粘性阻力与关系阻力与空隙率和相含率有关
写成如下UDF但是小弟在fluent导入UDF，初始化错误，Error:  received a fatal signal (Segmentation fault). Error Object: #f
还望各位前辈指点迷津
#include "udf.h"

DEFINE_PROFILE(porosity_function, t, nv)
{
        Thread *thread_g;
        real void_g, cgmb, a, b, cta;
        cell_t c;
        void_g = C_VOF(c, thread_g);/* gas vol frac*/
        cta = 0.36;
        cgmb = 1 - void_g * cta;
        a = 0.64 / cgmb;
        b = void_g * cta;
        begin_c_loop(c, t)
        {
                C_PROFILE(c, t, nv) = 3.6 *void_g*cgmb*pow(a, 0.33333) / pow(b, 3) / 0.0016;
        }
        end_c_loop(c, t);
}