Hello everybody. I have UDF code for define source term but it is not work. I think the problem of this code are in the define_adjust. Please anybody help me. This is my code

#include "udf.h" #include "math.h"

/* Turbulence model constants */ const real C_1=-0.2; const real C_2=0.4; const real C_5=0.0; const real CE_1=1.44; const real CE_2=1.92; const real SIG_K=1.0; const real SIG_E=1.3; const real C_MU_ke=0.09; const real kappa=0.42; const real E_log=9.793;

/* User-defined scalars */ enum { UU, VV, WW, UV, UW, VW };

DEFINE_SOURCE(u_source, c, t, dS, eqn) { real source;

dS[eqn]=0.0;

source= - C_R(c,t) * ( C_UDSI_G(c,t,UU)[0] + C_UDSI_G(c,t,UV)[1] + C_UDSI_G(c,t,UW)[2] );

return source; }

DEFINE_SOURCE(v_source, c, t, dS, eqn) { real source;

dS[eqn]= 0.0;

source= - C_R(c,t) * ( C_UDSI_G(c,t,UV)[0] + C_UDSI_G(c,t,VV)[1] + C_UDSI_G(c,t,VW)[2] );

return source; }

DEFINE_SOURCE(w_source, c, t, dS, eqn) { real source;

dS[eqn]= 0.0;

source= - C_R(c,t) * ( C_UDSI_G(c,t,UW)[0] + C_UDSI_G(c,t,VW)[1] + C_UDSI_G(c,t,WW)[2] );

return source; }

DEFINE_TURBULENT_VISCOSITY(user_mu_t,c,t) { real S,W,c_mu,T,mu_t; real S11, S12, S13, S21, S22, S23, S31, S32, S33; real W11, W12, W13, W21, W22, W23, W31, W32, W33;

S11 = 0.5*( C_DUDX(c,t)+C_DUDX(c,t) );

S12 = 0.5*( C_DUDY(c,t)+C_DVDX(c,t) );

S13 = 0.5*( C_DUDZ(c,t)+C_DWDX(c,t) );

S21 = 0.5*( C_DVDX(c,t)+C_DUDY(c,t) );

S22 = 0.5*( C_DVDY(c,t)+C_DVDY(c,t) );

S23 = 0.5*( C_DVDZ(c,t)+C_DWDY(c,t) );

S31 = 0.5*( C_DWDX(c,t)+C_DUDZ(c,t) );

S32 = 0.5*( C_DWDY(c,t)+C_DVDZ(c,t) );

S33 = 0.5*( C_DWDZ(c,t)+C_DWDZ(c,t) );

W11 = 0.5*( C_DUDX(c,t)-C_DUDX(c,t) );

W12 = 0.5*( C_DUDY(c,t)-C_DVDX(c,t) );

W13 = 0.5*( C_DUDZ(c,t)-C_DWDX(c,t) );

W21 = 0.5*( C_DVDX(c,t)-C_DUDY(c,t) );

W22 = 0.5*( C_DVDY(c,t)-C_DVDY(c,t) );

W23 = 0.5*( C_DVDZ(c,t)-C_DWDY(c,t) );

W31 = 0.5*( C_DWDX(c,t)-C_DUDZ(c,t) );

W32 = 0.5*( C_DWDY(c,t)-C_DVDZ(c,t) );

W33 = 0.5*( C_DWDZ(c,t)-C_DWDZ(c,t) );

T=C_K(c,t)/C_D(c,t);

S=T*sqrt( 2*(S11*S11+S12*S12+S13*S13+S21*S21+S22*S22+S23*S23 +S31*S31+S32*S32+S33*S33) );

W=T*sqrt( 2*(W11*W11+W12*W12+W13*W13+W21*W21+W22*W22+W23*W23 +W31*W31+W32*W32+W33*W33) );

c_mu=MIN( 1./(0.9*pow(S,1.4)+0.4*pow(W,1.4)+3.5) , 0.15 );

mu_t=c_mu*T*C_K(c,t);

return mu_t; }

DEFINE_ADJUST(rsm_adjust,domain) {

Thread *t;

cell_t c;

real T;

real mu_t, c_mu;

real S11, S12, S13, S21, S22, S23, S31, S32, S33;

real W11, W12, W13, W21, W22, W23, W31, W32, W33;

real S, W, Sij, Wij;

real C_3, C_4, C_6, C_7;

real P11, P22, P33, Pkk;

real tau_w, u_tauw, u_star, y_star, Gk, u_mag;

/* Set the turbulent viscosity */

thread_loop_c(t,domain)

if (FLUID_THREAD_P(t))

{

begin_c_loop(c,t)

{

S11 = 0.5*( C_DUDX(c,t)+C_DUDX(c,t) );

S12 = 0.5*( C_DUDY(c,t)+C_DVDX(c,t) );

S13 = 0.5*( C_DUDZ(c,t)+C_DWDX(c,t) );

S21 = 0.5*( C_DVDX(c,t)+C_DUDY(c,t) );

S22 = 0.5*( C_DVDY(c,t)+C_DVDY(c,t) );

S23 = 0.5*( C_DVDZ(c,t)+C_DWDY(c,t) );

S31 = 0.5*( C_DWDX(c,t)+C_DUDZ(c,t) );

S32 = 0.5*( C_DWDY(c,t)+C_DVDZ(c,t) );

S33 = 0.5*( C_DWDZ(c,t)+C_DWDZ(c,t) );

W11 = 0.5*( C_DUDX(c,t)-C_DUDX(c,t) );

W12 = 0.5*( C_DUDY(c,t)-C_DVDX(c,t) );

W13 = 0.5*( C_DUDZ(c,t)-C_DWDX(c,t) );

W21 = 0.5*( C_DVDX(c,t)-C_DUDY(c,t) );

W22 = 0.5*( C_DVDY(c,t)-C_DVDY(c,t) );

W23 = 0.5*( C_DVDZ(c,t)-C_DWDY(c,t) );

W31 = 0.5*( C_DWDX(c,t)-C_DUDZ(c,t) );

W32 = 0.5*( C_DWDY(c,t)-C_DVDZ(c,t) );

W33 = 0.5*( C_DWDZ(c,t)-C_DWDZ(c,t) );

T=C_K(c,t)/C_D(c,t);

S=T*sqrt( 2*(S11*S11+S12*S12+S13*S13+S21*S21+S22*S22+S23*S23 +S31*S31+S32*S32+S33*S33) );

W=T*sqrt( 2*(W11*W11+W12*W12+W13*W13+W21*W21+W22*W22+W23*W23 +W31*W31+W32*W32+W33*W33) );

Sij=S11*S11+S12*S12+S13*S13+S21*S21+S22*S22+S23*S2 3+S31*S31+S32*S32+S33*S33;

Wij=W11*W11+W12*W12+W13*W13+W21*W21+W22*W22+W23*W2 3+W31*W31+W32*W32+W33*W33;

c_mu=MIN( 1./(0.9*pow(S,1.4)+0.4*pow(W,1.4)+3.5) , 0.15 );

mu_t=c_mu*T*C_K(c,t);

C_3=2.0-exp(-SQR(S-W));

C_4=-32.0*SQR(c_mu);

C_6=-16.0*SQR(c_mu);

C_7=16.0*SQR(c_mu);

C_UDSI(c,t,UU)= C_1*mu_t*T* (S11*S11+S12*S12+S13*S13-1./3.*Sij)

+ 2.*C_2*mu_t*T*(W12*S12+W13*S13)

+ C_3*mu_t*T*(W12*W12+W13*W13-1./3.*Wij)

- 2.*C_4*mu_t*T*T * (W12*(S11*S12+S12*S22+S13*S23)+W13*(S11*S13+S12*S2 3+S13*S33))

+ C_6*mu_t*T*T* (S11*Sij)

+ C_7*mu_t*T*T* (S11*Wij);

C_UDSI(c,t,VV)= C_1*mu_t*T* (S12*S12+S22*S22+S23*S23-1./3.*Sij)

+ 2.*C_2*mu_t*T*(W23*S23-W12*S12)

+ C_3*mu_t*T*(W12*W12+W23*W23-1./3.*Wij)

+ 2.*C_4*mu_t*T*T * (W12*(S11*S12+S12*S22+S13*S23)-W23*(S12*S13+S22*S23+S23*S33))

+ C_6*mu_t*T*T* (S22*Sij)

+ C_7*mu_t*T*T* (S22*Wij);

C_UDSI(c,t,WW)= C_1*mu_t*T* (S13*S13+S23*S23+S33*S33-1./3.*Sij)

- 2.*C_2*mu_t*T*(W13*S13+W23*S23)

+ C_3*mu_t*T*(W13*W13+W23*W23-1./3.*Wij)

+ 2.*C_4*mu_t*T*T * (W13*(S11*S13+S12*S23+S13*S33)+W23*(S12*S13+S22*S2 3+S23*S33))

+ C_6*mu_t*T*T* (S33*Sij)

+ C_7*mu_t*T*T* (S33*Wij);

C_UDSI(c,t,UV)= C_1*mu_t*T* (S11*S12+S12*S22+S13*S23)

+ C_2*mu_t*T*(W12*(S22-S11)+W13*S23+W23*S13)

+ C_3*mu_t*T*(W13*W23)

+ C_4*mu_t*T*T* (W12*(S11*S11+S13*S13-S22*S22-S23*S23)-W13*(S12*S13+S22*S23+S23*S33)-W23*(S11*S13+S12*S23+S13*S33))

+ C_6*mu_t*T*T* (S12*Sij)

+ C_7*mu_t*T*T* (S12*Wij);

C_UDSI(c,t,UW)= C_1*mu_t*T* (S11*S13+S12*S23+S13*S33)

+ C_2*mu_t*T*(W13*(S33-S11)+W12*S23-W23*S12)

- C_3*mu_t*T*(W12*W23)

+ C_4*mu_t*T*T* (W13*(S11*S11+S12*S12-S23*S23-S33*S33)-W12*(S11*S13+S22*S23+S23*S33)+W23*(S11*S12+S12*S22 +S13*S23))

+ C_6*mu_t*T*T* (S13*Sij)

+ C_7*mu_t*T*T* (S13*Wij);

C_UDSI(c,t,VW)= C_1*mu_t*T* (S12*S13+S22*S23+S23*S33)

+ C_2*mu_t*T*(W23*(S33-S22)-W12*S13-W13*S12)

+ C_3*mu_t*T*(W12*W13)

+ C_4*mu_t*T*T* (W23*(S12*S12+S22*S22-S13*S13-S33*S33)+W12*(S11*S13+S12*S23+S13*S33)+W13*(S11*S1 2+S12*S22+S13*S23))

+ C_6*mu_t*T*T* (S23*Sij)

+ C_7*mu_t*T*T* (S23*Wij);

C_UDMI(c,t,0)= -2.*mu_t*S11 + 2./3.*C_K(c,t) + C_UDSI(c,t,UU);

C_UDMI(c,t,1)= -2.*mu_t*S22 + 2./3.*C_K(c,t) + C_UDSI(c,t,VV);

C_UDMI(c,t,2)= -2.*mu_t*S33 + 2./3.*C_K(c,t) + C_UDSI(c,t,WW);

C_UDMI(c,t,3)= -2.*mu_t*S12 + C_UDSI(c,t,UV);

C_UDMI(c,t,4)= -2.*mu_t*S13 + C_UDSI(c,t,UW);

C_UDMI(c,t,5)= -2.*mu_t*S23 + C_UDSI(c,t,VW);

}

end_c_loop(c,t)

} }

There are at least some brackets missing for the thread_loop_c(t,domain)