Tests in the variable density wind tunnel to investigate the effects of scale and turbulence on airfoil characteristics

John Stack
naca-tn-364
Feb 1931


The effect of scale and turbulence on the lift and drag of five airfoils the NACA 0006, the NACA 0021, the Clark Y and the USA 35-A, and the USN PS6, have been investigated in the Variable Density Wind Tunnel of the NACA. Tests were made over a wide scale range for only two different conditions of turbulence.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1931/naca-tn-364.pdf