Coefficient of Lift Calculator with Angular Velocity and Surface Roughenss

Coefficient of lift calculator

This Matlab GUI helps compute the coefficient of lift for a rotating sphere with roughness. Inside the GUI calculator you can change the roughness and the angular speed. The angular speed can be changed by changing the w*D/(2*U) from values of 1-4, where w is the angular speed, D is the Diameter and U is the free stream velocity. This non-dimensional number, w*D/(2*U) , was chosen because of its use in computing the coefficient of lift for smooth spheres. The roughness is units of meters and can be changed in the bottom left corner of the GUI, with specific commonly intervals.
This coefficient of lift is computed for Reynolds number of 60,000.
The data collected for this calculator was gathered through several tests in Star CCM*. Then equations of best fit were used to plot the equation for the coefficient of lift.