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October 15, 2016, 14:40 |
OSI UDF problem in FLUENT
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New Member
Siyeongju
Join Date: Sep 2016
Posts: 1
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Hello,
I added the new output parameter with OSI function in FLUENT. However, no data showed up in Parameter Chart. Would you mind letting me know how to deal with this problem? /************************************************** **** Oscillatory shear index ************************************************** ****/ #include "udf.h" #include "math.h" #include "storage.h" #include "sg_udms.h" #define domain_ID 1 #define zone_ID 7 /* Initialize the UDM value to zero in complete domain */ DEFINE_INIT(meminit,domain) { Thread *c_thread; cell_t c; thread_loop_c(c_thread,domain) { begin_c_loop(c, c_thread) { C_UDMI(c,c_thread,0)= 0; C_UDMI(c,c_thread,1)= 0; C_UDMI(c,c_thread,2)= 0; C_UDMI(c,c_thread,3)= 0; C_UDMI(c,c_thread,4)= 0; } end_c_loop(c, c_thread) } } /* Calculate wall shear stress and store them in UDM */ DEFINE_EXECUTE_AT_END(OSI) { Domain *domain; real area; face_t f; real A[ND_ND]; cell_t c, c0; Thread *t,*t0, *c_thread; real wallshear [ND_ND]; domain = Get_Domain(domain_ID); t = Lookup_Thread(domain,zone_ID); begin_f_loop(f, t) { F_AREA(A,f,t); area = NV_MAG(A); NV_V(wallshear,=,F_STORAGE_R_N3V(f,t, SV_WALL_SHEAR)); c0 = F_C0(f,t); t0 = THREAD_T0(t); C_UDMI(c0,t0,0) += NV_MAG(wallshear)/area; C_UDMI(c0,t0,1) += -wallshear[0]/area; C_UDMI(c0,t0,2) += -wallshear[1]/area; C_UDMI(c0,t0,3) += -wallshear[2]/area; C_UDMI(c0,t0,4) = (1.-sqrt(C_UDMI(c0,t0,1)*C_UDMI(c0,t0,1) + C_UDMI(c0,t0,2)*C_UDMI(c0,t0,2) + C_UDMI(c0,t0,3)*C_UDMI(c0,t0,3))/C_UDMI(c0,t0,0))/2; } end_f_loop(f,t) } |
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Tags |
osi, udf |
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