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July 18, 2012, 05:26 |
Velocity(inlet Boundary)
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#1 |
New Member
Amir sadeghi pour marvi
Join Date: Dec 2011
Posts: 25
Rep Power: 14 |
Hi everyone;
I simulated 3D water tank. Changes in the Y direction is not important. when i add the Velocity.c to fluent this error appear: line 20: i: undeclared variable #include "udf.h" #define ZMIN 0.0 #define ZMAX 0.8 #define UH 0.063 #define UMEAN 0.15625 #define P 0.21 DEFINE_PROFILE(x_velocity,t,i) { real z, x[ND_ND], h; face_t f; h=ZMAX-ZMIN; begin_f_loop(f,t) { F_CENTROID(x,f,t); z=x[1]; if (z<=0.4) F_PROFILE(f,t,i)=UH*pow(z/0.1,P); else F_PROFILE(f,t,i)=UMEAN; } end_f_loop(f,t) } what is problem? Last edited by Prince of Persia; July 18, 2012 at 06:47. |
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July 18, 2012, 07:58 |
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#2 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,426
Rep Power: 49 |
I am pretty sure that the pow(x,y) function is a part of the math library.
Try adding #include "math.h" to the header. |
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July 18, 2012, 13:19 |
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#3 |
New Member
Join Date: Jan 2010
Location: Netherlands
Posts: 28
Rep Power: 16 |
udf.h takes care of including other file header files for math functions.
try defining the profile by: Code:
begin_c_loop(c,t) { C_CENTROID(x,c,t); .. .. F_PROFILE(c,t,i) = } end_c_loop(c,t) |
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