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Error with UDF in Fluent - UDF for parabolic developed velocity profile.

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Old   April 4, 2021, 10:11
Exclamation Error with UDF in Fluent - UDF for parabolic developed velocity profile.
  #1
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Arun Prasath M
Join Date: Mar 2021
Posts: 1
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Arun_Prasath_M is on a distinguished road
Hello there,
I want to give a developed velocity profile at an inlet through a UDF for my problem. I'm using ANSYS 19.2 version and I couldn't find an option to enter expressions directly. So, I've written an UDF function which is supposed to provided a developed velocity profile at inlet instead of a uniform one.

I'm not successful. I'm getting errors. I'm attaching all the necessary details. I need help. Please, go through the UDF code and the formula i'm using. Please, let me know if I'm doing anything wrong.

Thanks.
This is the formula I'm using for developed parabolic velocity at inlet. I found it through a tutorial. (https://youtu.be/LF06grv299A?t=449).
Please, Let me know If I'm using wrong formula. Please, give me some more information for this formula.



v = v_max*[1-((x^2 + y^2)/R^2)] (Image is also attached)



Where R = Radius of the pipe
r = Distance from the central axis



UDF Code


Code:
/***********************************************************************
vprofile.c
************************************************************************/

#include "udf.h"

DEFINE_PROFILE(inlet_x_velocity, thread, position)
{
  real x[ND_ND];
  real y;
  face_t f;


  begin_f_loop(f,thread)
  {
    F_CENTROID(x, f, thread);
    F_PROFILE(f, thread, position) = 2.53*(1-((x*x+y*y)/(0.00775*0.00775)));
  }
  end_f_loop(f, thread)
}
Error
Attached...
Code:
 

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<udfconfig-host.h>" "D:/Ansys pro/Agarwal et al/Test UDF/vprofile_new.c"
Error: D:/Ansys pro/Agarwal et al/Test UDF/vprofile_new.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-11380-node0.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.11380.0.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.11380.0.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-968-node1.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.968.1.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.968.1.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-3432-node2.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.3432.2.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.3432.2.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-12804-node3.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.12804.3.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.12804.3.c: line 18: parse error.
Attached Images
File Type: png parabolic profile formula.PNG (21.9 KB, 3 views)
Attached Files
File Type: c vprofile_new.c (456 Bytes, 4 views)
File Type: txt Parse error.txt (9.6 KB, 2 views)
Last edited by Arun_Prasath_M; April 4, 2021 at 10:21. Reason: added an image reference
Arun_Prasath_M is offline   Reply With Quote

Old   October 20, 2022, 20:46
Default
  #2
New Member
 
Demetrio Pérez Vigueras
Join Date: Apr 2021
Posts: 1
Rep Power: 0
Demetrio Pérez Vigueras is on a distinguished road
Quote:
Originally Posted by Arun_Prasath_M View Post
Hello there,
I want to give a developed velocity profile at an inlet through a UDF for my problem. I'm using ANSYS 19.2 version and I couldn't find an option to enter expressions directly. So, I've written an UDF function which is supposed to provided a developed velocity profile at inlet instead of a uniform one.

I'm not successful. I'm getting errors. I'm attaching all the necessary details. I need help. Please, go through the UDF code and the formula i'm using. Please, let me know if I'm doing anything wrong.

Thanks.
This is the formula I'm using for developed parabolic velocity at inlet. I found it through a tutorial. (https://youtu.be/LF06grv299A?t=449).
Please, Let me know If I'm using wrong formula. Please, give me some more information for this formula.



v = v_max*[1-((x^2 + y^2)/R^2)] (Image is also attached)



Where R = Radius of the pipe
r = Distance from the central axis



UDF Code


Code:
/***********************************************************************
vprofile.c
************************************************************************/

#include "udf.h"

DEFINE_PROFILE(inlet_x_velocity, thread, position)
{
  real x[ND_ND];
  real y;
  face_t f;


  begin_f_loop(f,thread)
  {
    F_CENTROID(x, f, thread);
    F_PROFILE(f, thread, position) = 2.53*(1-((x*x+y*y)/(0.00775*0.00775)));
  }
  end_f_loop(f, thread)
}
Error
Attached...
Code:
 

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<udfconfig-host.h>" "D:/Ansys pro/Agarwal et al/Test UDF/vprofile_new.c"
Error: D:/Ansys pro/Agarwal et al/Test UDF/vprofile_new.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-11380-node0.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.11380.0.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.11380.0.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-968-node1.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.968.1.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.968.1.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-3432-node2.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.3432.2.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.3432.2.c: line 18: parse error.

cpp -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/main" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/addon-wrapper" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/io" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/species" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/pbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/numerics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/sphysics" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/storage" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mphase" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/bc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/models" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/material" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/amg" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/util" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/mesh" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/udf" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ht" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dx" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/turbulence" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/parallel" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/etc" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/ue" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dpm" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/src/dbns" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/PRIME/tgrid/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/cortex/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/client/src" -I"C:\PROGRA~1\ANSYSI~1\v192\fluent\fluent19.2.0/multiport/src" -I. -DUDFCONFIG_H="<C:/Users/SRM/AppData/Local/Temp/udfconfig-12804-node3.h>" "C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.12804.3.c"
Error: C:/Users/SRM/AppData/Local/Temp/vprofile_new.c.12804.3.c: line 18: parse error.
Remember that x is a vector where the coordinates of the centroid of the face are stored, that is, x=x[0], y=y[0], z=z[0].
If in F_PROFILE(f, thread, position) = 2.53*(1-((x*x+y*y)/(0.00775*0.00775)));
want to use the x and y coordinates, then get them from the vector x by
x=x[0], y=y[0].


#include "udf.h"

DEFINE_PROFILE(inlet_x_velocity, thread, position)
{
real cen[ND_ND];
real x,y,z;
face_t f;


begin_f_loop(f,thread)
{
F_CENTROID(cen, f, thread);
x=cen[0];
y=cen[1];
z=cen[2];
F_PROFILE(f, thread, position) = 2.53*(1-((x*x+y*y)/(0.00775*0.00775)));
}
end_f_loop(f, thread)
}
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