Showing papers in "Progress in Aerospace Sciences in 1991"

TL;DR: A summary of the current knowledge of the Gortler instability can be found in this paper, where the effect of the instability on heat transfer and the associated buoyancy forces on the instability is discussed.

TL;DR: In this article, a review aimed at providing a physical understanding of the crucial mechanisms for obtaining super lift by means of unsteady excitations is presented, with particular attention given to physical problems, including rolled-up vortex layer instability and receptivity, wave-vortex interaction and resonance, nonlinear streaming, instability of vortices behind bluff bodies and their shedding, and vortex breakdown.

TL;DR: In this paper, a non-uniform plume flow field (hypersonic continuum and free molecule flow together with the non-equilibrium transition) is determined and the treatment of the nozzle flow with the characteristic viscosity influence.

TL;DR: Several techniques to manipulate the forebody vortices to produce controlled forces and moments at high angles of attack have been investigated by a number of researchers in the past few years.

TL;DR: In this paper, a review of information on the influence of Reynolds number from a wide range of unsteady aerodynamic tests, with particular reference to wing flows, is presented. But the importance of scale effects is not recognized generally in steady aerodynamics but is often ignored in unstiffy aerodynamics.

TL;DR: In this paper, the authors describe time-based traffic management procedures that have been proposed to increase the capacity of the air traffic system by the beginning of the next century and discuss the shortcomings of today's air traffic control systems and the need for improved systems and procedures.

TL;DR: In this paper, an internal tuned damper and balance bump stops were recommended to limit the responses of a swept wing model to dangerous bending oscillations in a vertical plane at a Mach number of 0.50 in the incidence range from about 27-29° together with dangerous yawing oscillations above an incidence of about 35°.