On The Use Of Lagrangian Variables In Descriptions Of Unsteady Boundary Layer Separation
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| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 70 |
| Release | : 2018-07-10 |
| Genre | : |
| ISBN | : 9781722679392 |
The Lagrangian description of unsteady boundary layer separation is reviewed from both analytical and numerical perspectives. It is explained in simple terms how particle distortion gives rise to unsteady separation, and why a theory centered on Lagrangian coordinates provides the clearest description of this phenomenon. Some of the more recent results for unsteady three dimensional compressible separation are included. The different forms of separation that can arise from symmetries are emphasized. A possible description of separation is also included when the detaching vorticity layer exits the classical boundary layer region, but still remains much closer to the surface than a typical body-lengthscale. Cowley, Stephen J. and Vandommelen, Leon L. and Lam, Shui T. Unspecified Center...
| Author | : Leon L. Van Dommelen |
| Publisher | : |
| Total Pages | : 30 |
| Release | : 1989 |
| Genre | : Fluid dynamics |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 892 |
| Release | : 1994 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : Fung K Y |
| Publisher | : World Scientific |
| Total Pages | : 384 |
| Release | : 1994-04-19 |
| Genre | : |
| ISBN | : 9814551570 |
The aim of the symposium was to gather fellow researchers, colleagues and friends of Professor William R Sears, a member of the National Academy of Science and the Academy of Engineering, on the occasion of his 80th birthday. Professor Sears is a leader in Aerospace Science and Aerodynamics research and the symposium was held in honour of his work in these areas.The symposium focussed on four areas in aeronautical science in which Professor Sears has made major contributions. These are wing design, unsteady aerodynamics and separation, aeroacoustics and self-correcting wind tunnels.
| Author | : Christopher Radcliff Anderson |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 776 |
| Release | : 1991-12-23 |
| Genre | : Science |
| ISBN | : 9780821896969 |
Understanding vortex dynamics is the key to understanding much of fluid dynamics. For this reason, many researchers, using a great variety of different approaches--analytical, computational, and experimental--have studied the dynamics of vorticity. The AMS-SIAM Summer Seminar on Vortex Dynamics and Vortex Methods, held in June 1990 at the University of Washington in Seattle, brought together experts with a broad range of viewpoints and areas of specialization. This volume contains the proceedings from that seminar. The focus here is on the numerical computation of high Reynolds number incompressible flows. Also included is a smaller selection of important experimental results and analytic treatments. Many of the articles contain valuable introductory and survey material as well as open problems. Readers will appreciate this volume for its coverage of a wide variety of numerical, analytical, and experimental tools and for its treatment of interesting important discoveries made with these tools.
| Author | : T. Dracos |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 450 |
| Release | : 1993-09-01 |
| Genre | : Technology & Engineering |
| ISBN | : 9783764329242 |
This book contains the proceedings of a colloquium held in Monte Verità from September 9-13, 1991. Special care has been taken to devote adequate space to the scientific discussions, which claimed about half of the time available. Scientists from all over the world presented their views on the importance of kinematic properties, topology and fractal geometry, and on the dynamic behaviour of turbulent flows. They debated the importance of coherent structures and the possibility to incorporate these in the statistical theory of turbulence, as well as their significance for the reduction of the degrees of freedom and the prospective of dynamical systems and chaos approaches to the problem of turbulence. Also under discussion was the relevance of these new approaches to the study of the instability and the origin of turbulence, and the importance of numerical and physical experiments in improving the understanding of turbulence.
| Author | : Vladimir V. Sychev |
| Publisher | : Cambridge University Press |
| Total Pages | : 348 |
| Release | : 1998-08-28 |
| Genre | : Mathematics |
| ISBN | : 9780521455305 |
Boundary-layer separation from a rigid body surface is one of the fundamental problems of classical and modern fluid dynamics. The major successes achieved since the late 1960s in the development of the theory of separated flows at high Reynolds numbers are in many ways associated with the use of asymptotic methods. The most fruitful of these has proved to be the method of matched asymptotic expansions, which has been widely used in mechanics and mathematical physics. There have been many papers devoted to different problems in the asymptotic theory of separated flows and we can confidently speak of the appearance of a very productive direction in the development of theoretical hydrodynamics. This book will present this theory in a systematic account. The book will serve as a useful introduction to the theory, and will draw attention to the possibilities that application of the asymptotic approach provides.
| Author | : |
| Publisher | : |
| Total Pages | : 510 |
| Release | : 2005 |
| Genre | : Fluid mechanics |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1034 |
| Release | : 1993-02 |
| Genre | : Government publications |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1308 |
| Release | : |
| Genre | : Government publications |
| ISBN | : |
