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#include "udf.h" #define PI 3.14159 #define GRAV 9.81 #define D 5.0 #define H 1.0 #define T 4.0 #define L 23 #define FL 90 // x direction velocity // DEFINE_PROFILE(x_velocity, thread, position) { real x[ND_ND]; real y; real yu,K,W,Lu; face_t f; begin_f_loop(f, thread) { Real t=RP_Get_Real("flow-time" ;F_CENTROID(x,f,thread); y=x[1]; yu=Y-D; K=2.0*PI/L; W=2.0*PI/T; Lu=D+(H/2.0)*cos(K*0.0-W*t)+(PI*H*H/(8.0*L))*(cosh(K*D)/pow (sinh(K*D),3.0))* (2.0+cosh(2.0*K*D))*cos(2.0*(K*0.0-W*t))}; if (y<=Lu) F_PROFILE(f,thread,position)=(PI*H/T)*(cosh(K*(yu+D))/sinh(K*D))*cos( K*0.0-W*t)+0.75*(PI*PI*H*H/(T*L))*(cosh(2.0*K*(yu+D))/pow(sinh(K*D),4.0))*co s(2.0*(K*0.0-W*t)); else F_PROFILE(f, thread, position) =0; } end_f_loop(f, thread) } // y direction velocity // DEFINE_PROFILE(y_velocity, thread, position) { real x[ND_ND]; real y; real yu,K,W,PP; face_t f; begin_f_loop(f, thread) { real t =RP_Get_Real( "flow-time " ;F_CENTROID(x,f,thread); y=x[1]; yu=y-D; K=2.0*PI/L; W=2.0*PI/T; PP=D+(H/2.0)*cos (K*0.0-W*t)+(PI*H*H/(8.0*L))*(cosh(K*D)/pow(sinh(K*D),3.0))* (2.0+cosh(2.0*K*D))*cos(2.0*(K*0.0-W*t)); if (y<=PP) F_PROFILE(f,thread,position)=(PI*H/T)*(sinh(K*(yu+D))/sinh(K*D))*sin( K*0.0-W*t)+0.75*(PI*PI*H*H/(T*L))*(sinh(2.0*K*(yu+D))/pow(sinh(K*D),4.0))*sin (2.0*(K*0.0-W*t)); else F_PROFILE(f, thread, position)=0; } end_f_loop(f, thread) } |
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