Hello, I have simulated the case study shown in the attached paper and I got the same values of lift and drag coefficiencts for the case of 30 degress tilt angle. Now I wanna calculate the pressure over the PV array surface to use it as an input in ANSYS mechanical. How to calculate the net pressure coefficient in Fluent and how to get the pressure in Pa?

I got the pressure value by using this formula: 0.5*C_f*rho*V_d^2

C_f=1.428

rho=1.2

V_d=55 m/s

P=2689.83 but the paper shows lower numbers..What is the mistake?

Thank you!