[Abhya]

I am working on a an air duct into which air is pushed by fan positioned at the duct inlet.
I'm using " Pressure-jump" to model the fan using the "Static Pressure Fan curve form the manufacturer"
The Pressure jump box allows to define the pressure jump as a function of the " LOCAL normal velocity " as is stated in FLUENT manual here :
http://www.arc.vt.edu/ansys_help/flu...ec_bc_fan.html

However, I want to use the Mass-weighted average velocity at the fan face for calculating the pressure jump.
This is also specified in fluent in section -
"6.3.18.1.1. Modeling the Pressure Rise Across the Fan"
as - "You can, optionally, use the mass-averaged velocity normal to the fan to determine a single pressure-jump value for all faces in the fan zone."
However, I have searched everything and I couldn't find anything related to how to get Mass weighted average velocity at the fan face to calculate the pressure jump.
Anybody please help !
Its Urgent
The "INTAKE-FAN" boundary condition in FLUENT uses