Buffeting of Fins: An Assessment of Surface Pressure Loading

摘要

Buffeting of aircraft fins by streamwise vortices has emerged as a problem of central importance. Typically, vortex breakdown occurs prior to impingement of the vortex(ices) on the leading edge of the fin. Such breakdown induces surface pressure fluctuations, which may lead to vibration of the fin. In recent years, there have been a wide variety of investigations of both simplified fin-delta wing configurations and fins on actual model aircraft. Bean and Wood, Washburn et al., Wolfe and Rockwell, and Canbazoglu et al. have determined the pressure spectra at various locations on fins mounted on or immediately downstream of delta wings having sweep angles in the range of 60 deg ≤ λ ≤ 76 deg.