Effect of Reynolds Number on Aerodynamics of Airfoil with Gurney Flap

Table 5

Decrement in lift-to-drag ratio per every 10,000 decrease in Reynolds number for different ranges of Reynolds number.

Reynolds number range
AoA,	to	to	to	to	to
4°
Without GF	0.262	0.454	0.595	0.793	1.161
With GF	0.255	0.483	0.663	0.990	1.551
8°
Without GF	0.386	0.641	0.824	1.095	1.552
With GF	0.317	0.551	0.734	0.987	1.465
12°
Without GF	0.375	0.572	0.698	0.910	1.256
With GF	0.363	0.512	0.593	0.710	0.910