Home – Home – Jornals – Thermophysics and Aeromechanics 2002 number 2

In the first part of this work [1], results of an experimental study of swept-wing boundary layer receptivity to localized wing-surface vibrations were reported, which, in particular, made it possible to obtain complex values of vibrational receptivity coefficients for the swept-wing flow as functions of spanwise wavenumber for six disturbance frequencies. In the present part of the work we present a detailed analysis of the frequency dependence of all disturbance characteristics obtained previously. By extrapolating the experimental data to the zero frequency, we obtained quantitative estimates of characteristics of swept-wing boundary layer receptivity to stationary surface roughness. The validity of this approach is substantiated.