wall shear force with VOF
Hello everbody,
I am just working on a simple UDF to calculate the wall shear force, it looks like DEFINE_EXECUTE_AT_END(force) { Domain *d = Get_Domain(1); /* 1: mixture*/ Thread *ft; face_t f; real shear_force[3]; real shear_force_0 = 0.0, shear_force_1 = 0.0, shear_force_2 = 0.0; thread_loop_f(ft,d) { if ((THREAD_TYPE(ft) == THREAD_F_WALL)) { begin_f_loop(f,ft) { NV_V(shear_force, =, F_STORAGE_R_N3V ,ft,SV_WALL_SHEAR)); shear_force_0 += shear_force[0]; shear_force_1 += shear_force[1]; shear_force_2 += shear_force[2]; } end_f_loop(f,ft) } } } Anyway, the UDF results in the case of a transient two-phase VoF simulation differ from that one calculated by Fluent´s force report. If a single phase flow is used, the UDF results do well agree to the standard force report. Has anybody experience with wall shear calculation for the VoF model? Thank´s in advance |
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