Integral Drag Coefficient
 

Hey all, i am trying to establish the integral drag coefficient of a 2D aerofoil by measuring the static pressures and velocities within the wake. The related experimental data can be found at 'An Experimental Investigation of a Supercritical Airfoil at Transonic Speeds' by Mateer et al. This report details the method however, it is not very clear to an non-expert like me.

I am using Fluent 14.5, can anyone help?