Showing papers in "Progress in Aerospace Sciences in 1996"

TL;DR: Aluminum alloys have been the primary material of choice for structural components of aircraft since about 1930 as discussed by the authors and have been used extensively in high-performance military aircraft and are being specified for some applications in modern commercial aircraft, including the fuselage, wing, and supporting structure of commercial airliners and military cargo and transport.

TL;DR: The available data describing the incompressible zero-pressure gradient boundary layer are reviewed in association with a range of studies which are either new or, to date, not very generally available as discussed by the authors.

TL;DR: In Part I, issues pertaining to compression testing and micromechanical failure theories are reviewed.

TL;DR: In this article, features of two-dimensional and three-dimensional separating turbulent boundary layer flows are discussed, and the behavior and structure of strong adverse-pressure-gradient separating flows over streamlined surfaces and backward-facing step separations are reviewed.

TL;DR: In this article, issues related to compression testing of composites and micromechanical failure models were reviewed, and the advantages and disadvantages of the many different experimental techniques to measure fiber strength were presented.

TL;DR: In this article, the effect of compressibility on dynamic stall behavior has been comprehensively studied, including a review of work performed on both aircraft and helicopters, and offers insight into the impact of compressible airfoils on the complex aerodynamic phenomenon known as dynamic stall.

TL;DR: In this article, the authors present a review of the developments that have taken place on the use of passive techniques or devices for axisymmetric base and net afterbody drag reduction in the absence of jet flow at the base.

TL;DR: In this paper, the authors reviewed the gradual progress in the understanding of the nature of the flow field, and issues that require further research are identified, and the major features of flow field like the shock structure and the shape of the conical vortex have been visualized efficiently.

TL;DR: A review of the current state of the art in turbulence modeling can be found in this article, where the validity of the law of the wall, the universal near-wall scaling, and the effect of compressibility on turbulence are discussed.

TL;DR: In this article, a review indicates that the proper utilization of neural networks offers a feasible approach to help meet current and future technological needs in aeronautics, including the implementation of active control devices to harness or suppress unsteady aerodynamic effects such as dynamic stall on helicopter rotor blades.

TL;DR: The X-31 enhanced fighter maneuverability (EFM) demonstrator has pioneered agile flight in the post-stall flight regime and explored integrated multi-axis thrust vectoring across a broad flight envelope as discussed by the authors.

TL;DR: Progress in the development of a multiblock, multigrid algorithm, and a critical assessment of the κ-e two-equation turbulent model for solving fluid flows in complex geometries is presented, and the robustness of the solver is demonstrated.

TL;DR: A critical analysis of the methods currently used in fault management, in the light of personal experience of safety critical systems development within the aircraft industry and work by other researchers is presented in this article.