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dayu7973

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[求助] Fluent UDF F_UDMI求助!!

代码如下,该边界为flux边界,大小是边界温度的函数(a是一个权数),边界温度限制在500K以内,
迭代了几步我检查F_UDMI(f,thread,15)和F_UDMI(f,thread,16),结果F_UDMI(f,thread,15)数值大的离谱(10e14数量级,按理应该不会超过500啊),F_UDMI(f,thread,16)则各处都为0,无法显示。。。
这到底是怎么回事,各位大神们指点一二,小弟弟感激不尽~~~

DEFINE_PROFILE(A_Boundary,thread,position)
{
        real A[ND_ND];
        real a,Sum_as,I,theta,area,temp;
        face_t f;
        Sum_as=0;
        I=100;
        theta=1e-5;
        begin_f_loop(f,thread)
        {
                F_AREA(A,f,thread);

                area = NV_MAG(A);

                if (F_T(f,thread)<500)
                {
                        F_UDMI(f,thread,15)=F_T(f,thread);
                }
                else
                {
                        F_UDMI(f,thread,15)=500;
                }
               
                a = F_UDMI(f,thread,15)*F_UDMI(f,thread,15)*exp(-5/F_UDMI(f,thread,15))*theta;
                F_UDMI(f,thread,16)=a;
                Sum_as = a*area + Sum_as;
        }
        end_f_loop(f,thread)

        begin_f_loop(f,thread)
        {   
                F_PROFILE(f,thread,position)=I*F_UDMI(f,thread,16)/Sum_as;
        }
        end_f_loop(f,thread)
}
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