Research on Various Aspects of Atmospheric Flight.

摘要

This research has studied aerodynamic problems in upper atmospheric flight and the disturbed flight of aircraft due to low level turbulence during the approach phase. Individual project summaries include: (1) Calculations have been made for low speed sphere drag in transition flow; experiments confirm the theoretical predictions; (2) An electron beam doppler profile apparatus has been used to delineate the shape of the distribution function in a heat transfer problem indicating its progressive nonequilibrium nature as the degree of rarefaction increased; (3) An electron beam fluorescence instrument has been designed for rocketborne use to measure upper atmospheric concentrations of nitrogen, molecular oxygen, atomic oxygen, rotational and vibrational temperatures; a number of launches have been made on Black Brant rockets from Fort Churchill (AD 033 680); (4) A laser-doppler instrument has been constructed and checked out as a means of remotely measuring turbulence in the atmospheric boundary layer; and (5) Wind tunnel measurements in a controlled turbulent shear flow have been made along representative flight paths for STOL vehicles to provide an input to predict dispersions of the landing point.