LIFT AND MOMENT RESPONSES TO PENETRATION OF SHARP-EDGED TRAVELING GUSTS, WITH APPLICATION TO PENETRATION OF WEAK BLAST WAVES

摘要

The lift and moment responses to penetration of sharp-edged traveling gusts are calculated for wings in incompressible and supersonic two-dimensional flow, for wide delta and rectangular wings in supersonic flow, and for very harrow delta wings. By using the two-dimensional indicial-lift functions, some calculations of normal-acceleration response are made for two mass ratios.nThe results of these calculations indicate that the forward speed of the gusts has a large effect on. the lift- and moment-response func- tions. For incompressible flow, peaks exist in the early portion of the lift response, which may be much larger than the steady-state value. Some peaks also occur in the lift-response functions for .supersonic speeds but are much less, pronounced and exceed the steady-state value .in only a few instances.