Non-uniform heat flux on a tube
Dear all,
How can I use a non-uniform heat flux boundary condition along the circumference of a tube? Regards |
Quote:
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With the define_profile macro you should be able to specify such a boundary condition.
Code:
#include "udf.h" |
Dear Alex,
Thanks a lot for this. I will try it out. so i do not need to worry about converting the cartesian coordinates to cylindrical coordinates? The heat flux varies only in the circumferential direction and not in the radial or axial direction. Regards Kamu |
If your simulation is real 3D then there should be no problem.
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Non-uniform heat flux on a tube
above program is not running and what is the meaning of x[1],y[1] and z[1].
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"program not running" is not an error description to work with.
There is no x[1], y[1] and z[1] in the code. As the comment lines say, the array x holds the position vector. Thanks to my fortran background I shifted the indices. The comment line should read: Code:
*x[0] is the x-coordinate, x[1] the y-coordinate and x[2] the z-coordinate |
hi can you tell me what's the heat flux function you've defined mathematically as non-uniform heat flux?
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Code:
#include "udf.h" Code:
F_PROFILE(f,t,i) = x[0]*1000.0; heat source could be time dependent as well best regards |
Quote:
I m working on a pipe in pipe volumetric solar collector and I want to choose best radiation model in ansys fluent because my multiphase model is mixture for simulating nanofluid and my solver is pressure based you know when I read papers related to this topic I found that monte carlo method (density based) is a proper model and using udf file to consider non uniform radiation is applied so what should I do ?I cant change to monte carlo method because mixture model is important for me... |
from my point of view monte carlo method is just a slover, use other one
write new paper best regards |
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