场协同角UDF，熵产UDF

#include "udf.h"

DEFINE_ON_DEMAND(synergy)

{

Domain *domain;

cell_t c;

Thread *t;

real lamdaf=0.6;

real tf=320;

real vel=0.;

real miu=0.001003;

domain=Get_Domain(1);

thread_loop_c(t,domain)

{

begin_c_loop(c,t)

{

    vel=sqrt(C_U(c,t)*C_U(c,t)+C_V(c,t)*C_V(c,t)+C_W(c,t)*C_W(c,t));

C_UDMI(c,t,0) = acos((C_U(c,t)*C_T_G(c,t)[0]+C_V(c,t)*C_T_G(c,t)[1]+C_W(c,t)*C_T_G(c,t)[2])/vel/NV_MAG(C_T_G(c,t)));/*acos*/

C_UDMI(c, t, 1) = lamdaf/tf/tf*NV_MAG2(C_T_G(c,t));/*St*/

C_UDMI(c, t, 2) = miu/tf*(2*(C_U_G(c,t)[0]*C_U_G(c,t)[0]+C_V_G(c,t)[1]*C_V_G(c,t)[1]+C_W_G(c,t)[2]*C_W_G(c,t)[2])+(C_U_G(c,t)[1]+C_V_G(c,t)[0])*(C_U_G(c,t)[1]+C_V_G(c,t)[0])+(C_U_G(c,t)[2]+C_W_G(c,t)[0])*(C_U_G(c,t)[2]+C_W_G(c,t)[0])+(C_V_G(c,t)[2]+C_W_G(c,t)[1])*(C_V_G(c,t)[2]+C_W_G(c,t)[1]));/*Sp*/

C_UDMI(c, t, 3) =C_UDMI(c, t, 2) +C_UDMI(c, t, 1) ;

}

end_c_loop(c,t)

}

}