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Lagrangian approach to solve for shear induced blood damage? |
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September 29, 2020, 01:36 |
Lagrangian approach to solve for shear induced blood damage?
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Sai Paruchuri
Join Date: Feb 2020
Posts: 4
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I am trying to calculate lagrangian blood damage by using DPM in Fluent. So, to calculate the degree of blood damage on a particle, I'd need to integrate shear stress on the particle (^exponent) w.r.t (residence) time. When I use the UDF below, I am getting a value of 0. I even tried replacing the values of C_MU_L and C_R with the actual numbers since they are constant throughout the domain.
I am a beginner in Fluent UDF programming and sincerely appreciate any suggestions/help towards getting this UDF right. #include "udf.h" #define A ***** #define exp_t **** #define exp_tau *** DEFINE_DPM_SOURCE(calc_HIp, c, t, dS, eqn) { real tau = C_STRAIN_RATE_MAG(c,t)*(C_MU_L(c,t)); real source = pow(A,1.0/exp_t)*pow(tau,exp_tau/exp_t)*C_R(c,t); dS[eqn] = 0.; return source; } Thanks in advance |
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