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| Author | : Virgil A. Sandborn |
| Publisher | : |
| Total Pages | : 168 |
| Release | : 1974 |
| Genre | : Fluid dynamics |
| ISBN | : |
| Author | : Thomas B. Gatski |
| Publisher | : Academic Press |
| Total Pages | : 343 |
| Release | : 2013-03-05 |
| Genre | : Science |
| ISBN | : 012397318X |
Compressibility, Turbulence and High Speed Flow introduces the reader to the field of compressible turbulence and compressible turbulent flows across a broad speed range, through a unique complimentary treatment of both the theoretical foundations and the measurement and analysis tools currently used. The book provides the reader with the necessary background and current trends in the theoretical and experimental aspects of compressible turbulent flows and compressible turbulence. Detailed derivations of the pertinent equations describing the motion of such turbulent flows is provided and an extensive discussion of the various approaches used in predicting both free shear and wall bounded flows is presented. Experimental measurement techniques common to the compressible flow regime are introduced with particular emphasis on the unique challenges presented by high speed flows. Both experimental and numerical simulation work is supplied throughout to provide the reader with an overall perspective of current trends. An introduction to current techniques in compressible turbulent flow analysis An approach that enables engineers to identify and solve complex compressible flow challenges Prediction methodologies, including the Reynolds-averaged Navier Stokes (RANS) method, scale filtered methods and direct numerical simulation (DNS) Current strategies focusing on compressible flow control
| Author | : |
| Publisher | : |
| Total Pages | : 121 |
| Release | : 1994 |
| Genre | : |
| ISBN | : |
Mean flow and compressible turbulence measurements have been obtained upstream and within a shock boundary interaction and a compression ramp in Mach 3 flow. Compressible turbulence models have met with little success in the accurate prediction of high-speed flows involving complicated shock boundary interactions and adverse pressure gradients because of a crucial lack of experimental data. Data were collected using conventional Pitot and cone static probes, single overheat cross-wire anemometry, multiple overheat cross-wire anemometry, and flow visualization techniques. Direct measurements of the total Reynolds shear stress were obtained using a turbulence transformation. Results indicate that compressibility effects, as evidenced by the density fluctuations, are large relative to the velocity fluctuations and should be accounted for rigorously in new turbulence models.
| Author | : North Atlantic Treaty Organization. Advisory Group for Aeronautical Research and Development |
| Publisher | : |
| Total Pages | : 210 |
| Release | : 1981 |
| Genre | : Aerodynamics |
| ISBN | : 9789283514046 |
| Author | : |
| Publisher | : |
| Total Pages | : 518 |
| Release | : 1976 |
| Genre | : |
| ISBN | : |
| Author | : United States. National Aeronautics and Space Administration |
| Publisher | : |
| Total Pages | : 814 |
| Release | : 1978 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : Eli Reshotko |
| Publisher | : |
| Total Pages | : 245 |
| Release | : 1989 |
| Genre | : Boundary layer |
| ISBN | : 9789283505068 |
This AGARDograph presents a wide range of recent work on compressible turbulent boundary layers. Special attention has been paid to flows with rapid changes in pressure including flows with shock waves, curved walls and expansions. Recent developments in the theory and experimental practice for these flows are presented. The application of rapid distortion theory to flows traversing expansion and shock waves is reviewed. This is followed by an account of experiments in progress aimed at elucidating the large scale structures present in supersonic boundary layers. The current status of the techniques of Laser-Doppler and Hot Wire anemometry in supersonic flow is discussed, and a new interferometric technique for the determination of wall-stress is described. The use of small pressure transducers to deduce information abut the structure of zero pressure-gradient and severly perturbed boundary layers is investigated. Finally there is an extension of the review and data presentation of AGARDographs 223, 253 and 263 to cover some of the experiments dealing with rapidly distorted layers.
| Author | : |
| Publisher | : |
| Total Pages | : 332 |
| Release | : 1978 |
| Genre | : Science |
| ISBN | : |
| Author | : Joseph G. Marvin |
| Publisher | : |
| Total Pages | : 132 |
| Release | : 1977 |
| Genre | : |
| ISBN | : |
| Author | : Walter Frost |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 511 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1468423223 |
Turbulence takes place in practically all flow situations that occur naturally or in modern technological systems. Therefore, considerable effort is being expended in an attempt to understand this very complex physical phenome non and to develop both empirical and mathematical models for its description. Such numerical and analytical computational schemes would allow the reliable prediction and design of turbulent flow processes to be carried out. The purpose of this book is to bring together, in a usable form, some of the fundamental concepts of turbulence along with turbulence models and experimental techniques. It is hoped that these have "general applicability" in current engineering design. The phrase "general applicabil ity" is highlighted because the theory of turbulence is still so much in a formative stage that completely general analyses are not available now, nor will they be available in the immediate future. The concepts and models described herein represent the state-of-the art methods that are now being used to give answers to turbulent flow problems. As in all turbulent flow analysis, the methods are a blend of analytical and empirical input, and the reader should be cognizant of the simplification and restrictions imposed upon the methods when applyingthem to physical situations different from those for which they have been developed.
