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Drawing a velocity profile as inlet boundary condition in Fluent ANSYS ???? |
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#1 |
Member
Hassan Iftekhar
Join Date: Jan 2015
Posts: 40
Rep Power: 11 ![]() |
I have a velocity profile equation which I want to give as inlet boundary condition in ANSYS Fluent. How this is possible.???
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#2 |
Member
Join Date: Nov 2014
Posts: 31
Rep Power: 11 ![]() |
Hi..
You have to use UDF for defining velocity profile at inlet. Code:
/********************************************************************** udfexample.c UDF for specifying a steady-state velocity profile boundary condition **********************************************************************/ #include "udf.h" /* must be at the beginning of every UDF you write */ DEFINE_PROFILE(x_velocity,thread,index) { real x[ND_ND]; /* this will hold the position vector */ real y; face_t f; begin_f_loop(f,thread) /* loops over all faces in the thread passed in the DEFINE macro argument */ { F_CENTROID(x,f,thread); y = x[1]; F_PROFILE(f,thread,index) = 20. - y*y/(.0745*.0745)*20.; } end_f_loop(f,thread) } You may refer http://aerojet.engr.ucdavis.edu/flue...df/node224.htm |
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#3 |
Member
Hassan Iftekhar
Join Date: Jan 2015
Posts: 40
Rep Power: 11 ![]() |
Thank you Maverick.. your post is very helpful. I will try doing that
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