Showing papers in "Progress in Aerospace Sciences in 1983"

TL;DR: In this article, a review of the basic mechanisms by which free stream turbulence and the overall mean flow over bluff bodies (at high Reynolds numbers) interact are discussed in some detail, and three basic mechanisms that may be identified: accelerated transition to turbulence in shear layers, enhanced mixing and entrainment, and distortion of FST itself by the mean flow.

TL;DR: In this article, it is shown that the set of equations on a discontinuity resulting from the conservation laws for mass, momentum and energy and from Maxwell equations is not closed: there is an insufficiency of a relation for determining a surface charge intensity which can be accumulated and conserved for a long time on discontinuity front.

TL;DR: The concept of a reusable space transporter formed a focus of much effort for the German firms Junkers Flugzeug- und Motorenwerke (JFM), Messerschmitt-Bolkow-Blohm und Voss (MBB) and Entwicklungsring Nord (ERNO), together with the Deutsche Forschungs- und Veruchsanstalt fur Luft- und Raumfahrt (DFVLR) and different University institutes during the decade beginning 1962 as discussed by the authors.