A new technique for measuring skin friction was employed to help document the flow on an airfoil at angles of attack from -0.5 to 11.5 deg. Surface pressures were also measured on both the wing and wind-tunnel-walls. The experiment was conducted at a freestream Mach number of 0.2 and Reynolds numbers of 0.6, 2, and 6 x 106. The objective of the study was to provide data and boundary condition information sufficient for the validation of numerical simulations. Such a simulation of the experiment was conducted using the INS2D Navier-Stokes code with the shear-stress-transport turbulence model. The computations provide a good description of both laminar and turbulent shear levels, except for turbulent flow on the top surface of the wing at the higher angles of attack.
Skin-friction measurements and calculations on a lifting airfoil
Hautreibungs-Messungen und -Berechnungen an und für einen Tragflügel mit hohem Auftrieb
AIAA Journal ; 34 , 2 ; 231-236
1996
6 Seiten, 9 Bilder, 15 Quellen
Article (Journal)
English
Tragflügelumströmung , Auftrieb , Luftwiderstand , Flügelprofil , reibungsbehaftete Strömung , Anstellwinkel (Tragflügel) , Druckmessung , Druckverteilung , Grenzschichtströmung , Windkanal , Vergleichsmessung , Randbedingung , numerisches Verfahren , Software , Scherspannung , laminare Strömung , turbulente Strömung , Interferometrie , Ölfilm , Reynolds-Zahl , Strömungsübergang
Skin-Friction Measurements and Calculations on a Lifting Airfoil
Online Contents | 1996
|Direct Measurements of Skin Friction
NTRS | 1952
|