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| Author | : H. H. Pearcey |
| Publisher | : |
| Total Pages | : |
| Release | : 1954 |
| Genre | : |
| ISBN | : |
| Author | : Anthony W. Fiore |
| Publisher | : |
| Total Pages | : 962 |
| Release | : 1978 |
| Genre | : Turbulent boundary layer |
| ISBN | : |
In 1975 the U.S. Air Force and the Federal Republic of Germany signed a Data Exchange Agreement numbered AF-75-G-7440 entitled 'Viscous and Interacting Flow Fields.' The purpose was to exchange data in the area of boundary layer research. It includes both experimental and theoretical boundary layer research at speeds from subsonic to hypersonic Mach numbers in the presence of laminar, transitional, and turbulent boundary layers. The main effort in recent years has been on turbulent boundary layers, both attached and separated in the presence of such parameters as pressure gradients, wall temperature, surface roughness, etc. In the United States the research was conducted in various Department of Defense, NASA, aircraft corporations, and various university laboratories. In the Federal Republic of Germany it was carried out within the various DFVLR, industrial, and university research centers.
| Author | : G. V. Lachmann |
| Publisher | : Elsevier |
| Total Pages | : 768 |
| Release | : 2014-05-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1483226662 |
Boundary Layer and Flow Control: Its Principles and Application, Volume 2 focuses on the layer of fluid in the immediate area of a bounding surface where the effects of viscosity are substantial. This book is organized into two main topics—boundary layer control for low drag, and shock-induced separation and its prevention by design and boundary layer control. It specifically discusses the nature of transition, effect of two-dimensional and isolated roughness on laminar flow, and progress in the design of low drag aerofoils. The onset of separation effects for aerofoils and wings, shock-induced separation for laminar boundary layers, and shock-induced separation for laminar boundary layers are also deliberated. This volume is recommended to physicists and specialists interested in boundary layer and flow control.
| Author | : Barney Hugh Little |
| Publisher | : |
| Total Pages | : 60 |
| Release | : 1967 |
| Genre | : Boundary layer |
| ISBN | : |
| Author | : Elmer A. Horton |
| Publisher | : |
| Total Pages | : 58 |
| Release | : 1950 |
| Genre | : Airplanes |
| ISBN | : |
An investigation was made to determine the effects of boundary-layer control on the landing performance characteristics of a liaison type of airplane having a payload of 1500 pounds and a flight duration of 5 hours. The aspect ratio was varied from 5 to 15, the wing span from 30 to 100 feet, and the brake horsepower from 300 to 1200. The use of boundary-layer control caused reduction in total landing distance (25 to 40 percent), ground-run distance, gliding speed, and stalling speed whereas sinking speed was increased only slightly.
| Author | : Elmer A. Horton |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1948 |
| Genre | : Airplanes |
| ISBN | : |
A performance analysis is given to determine whether bondary-layer control by suction might reduce the minimum take-off distance of a four- or five-place airplane. Results indicate that boudary-layer control might be effective in improving the take-off characteristics of this type airplane having wing loading of 10 or more pounds per square foot and aspect ratios of 10 or more.
| Author | : Bernard M. Leadon |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 1971 |
| Genre | : |
| ISBN | : |
The literature relating to vehicle stability was searched for papers in which flow separation from aerodynamic surfaces is explicitly studied. Data were found usually to deal with Magnus forces and moments, roll-yaw coupling, roll lock-in, and similar phenomena of less than obvious origins. Ample justification for detailed examination of boundary layers and of nonlinear equations of motion is offered by these examples since these are vehicle characteristics which are at present unpredictable primarily because three-dimensional boundary layer behavior is not well understood. Some examples of methods of numerical analysis of flight test data which aim at the extraction of the nonlinear coefficients of the equations of motion are cited. Finally, a background of well-established boundary layer theory is presented, and the advances of the past few years are reviewed. (Author).
| Author | : Herbert Harry Pearcey |
| Publisher | : |
| Total Pages | : 58 |
| Release | : 1967 |
| Genre | : |
| ISBN | : |
| Author | : Holger Babinsky |
| Publisher | : Cambridge University Press |
| Total Pages | : 481 |
| Release | : 2011-09-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1139498649 |
Shock wave-boundary-layer interaction (SBLI) is a fundamental phenomenon in gas dynamics that is observed in many practical situations, ranging from transonic aircraft wings to hypersonic vehicles and engines. SBLIs have the potential to pose serious problems in a flowfield; hence they often prove to be a critical - or even design limiting - issue for many aerospace applications. This is the first book devoted solely to a comprehensive, state-of-the-art explanation of this phenomenon. It includes a description of the basic fluid mechanics of SBLIs plus contributions from leading international experts who share their insight into their physics and the impact they have in practical flow situations. This book is for practitioners and graduate students in aerodynamics who wish to familiarize themselves with all aspects of SBLI flows. It is a valuable resource for specialists because it compiles experimental, computational and theoretical knowledge in one place.
