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November 7, 2012, 19:43 
Interpreting Multiple UDFs

#1 
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Can somebody help me how to interpret multiple UDFs? Thanks, 

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November 8, 2012, 03:55 

#2  
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Daniele
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Quote:
If you have problems attach your udfs here. Daniele 

November 9, 2012, 14:21 

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January 17, 2013, 09:36 

#4 
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Thomas Hoffmann
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Hi, I've had the exact same problem. But I have never coded in C before. can you help me write these 2 UDFs into one file?
Thanks! #include "udf.h" DEFINE_PROFILE(inlet_velocity_x, t, i) { real x[ND_ND]; /* this will hold the position vector*/ real y; face_t f; begin_f_loop(f,t) { F_CENTROID(x,f,t); y=x[1]; F_PROFILE(f,t,i) = 0.001474*(1pow(((0.024y)/0.024),3)); } end_f_loop(f,t) } and #include "udf.h" DEFINE_PROPERTY(pl_visc, c, t) { real mu; real temp = C_T(c,t); real gamma_dot=(4*0.000016)/(3.14159*0.024*0.024*0.024); { mu = (2*exp(0.7*temp))*gamma_dot*2; } return mu; } 

January 17, 2013, 10:05 

#5  
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Daniele
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Quote:
Code:
#include "udf.h" DEFINE_PROFILE(inlet_velocity_x, t, i) { real x[ND_ND]; /* this will hold the position vector*/ real y; face_t f; begin_f_loop(f,t) { F_CENTROID(x,f,t); y=x[1]; F_PROFILE(f,t,i) = 0.001474*(1pow(((0.024y)/0.024),3)); } end_f_loop(f,t) } DEFINE_PROPERTY(pl_visc, c, t) { real mu; real temp = C_T(c,t); real gamma_dot=(4*0.000016)/(3.14159*0.024*0.024*0.024); { mu = (2*exp(0.7*temp))*gamma_dot*2; } return mu; } 

January 18, 2013, 05:52 

#6 
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Thomas Hoffmann
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Thanks!
for some reason it didn't work for me. maybe I forgot to remove '#include "udf.h"' as i Copied it togheter? but it works now  Thanks! 

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