Learning Forum

[Anadi_Mondal]

Hello,

If I use the outer face (surface )of a 3D pipe to DEFINE_PROFILE, then is there any way to calculate the F_AREA(area,f,tf), area_face=NV_MAG(area) ,F_CENTROID(pos,f,tf) manually?

Actually I want to know the difference between area_face calculated by ansys and the outer area of a tube calculated by analytically.

Regards,

Anadi

[Karthik Remella]

Hello What do you mean by 'manually'? If it is a separate face zone, you should be able to use the 'surface integral' (area) option to estimate the total surface area. You should be able to compare the two values (from the UDF and Fluent post-processing) obtained. Is this what you are looking for?
Karthik

[Anadi_Mondal]

Hello Karthik Thank you for replying. I mean 'analytically' by the word 'manually' . We can calculate outer surface area of of a tube by 2*pi*r*h which should be same as using 'surface integral'(area). But, I want to know the difference between these(analytical/surface integral(area) area and F_AREA(area,f,tf) ,area_face=NV_MAG(area).
Which area we get when we use the macros F_AREA(area,f,ft) and area_face=NV_MAG(area)?
Regards Anadi

[Rob]

If you look in the documentation you'll find examples of those macros, you'll also find examples of fprint: you need to apply the latter to the former.

[Amine Ben Hadj Ali]

Surface Integral of Area is the sum of facets area.