Turbulent Wake
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| Author | : Jean Piquet |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 767 |
| Release | : 2013-04-17 |
| Genre | : Technology & Engineering |
| ISBN | : 3662035596 |
obtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.
| Author | : Charles H. Murphy |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1962 |
| Genre | : Wakes (Aerodynamics) |
| ISBN | : |
| Author | : Jean Mathieu |
| Publisher | : Cambridge University Press |
| Total Pages | : 388 |
| Release | : 2000-06-26 |
| Genre | : Science |
| ISBN | : 9780521775380 |
Most natural and industrial flows are turbulent. The atmosphere and oceans, automobile and aircraft engines, all provide examples of this ubiquitous phenomenon. In recent years, turbulence has become a very lively area of scientific research and application, attracting many newcomers who need a basic introduction to the subject. An Introduction to Turbulent Flow, first published in 2000, offers a solid grounding in the subject of turbulence, developing both physical insight and the mathematical framework needed to express the theory. It begins with a review of the physical nature of turbulence, statistical tools, and space and time scales of turbulence. Basic theory is presented next, illustrated by examples of simple turbulent flows and developed through classical models of jets, wakes, and boundary layers. A deeper understanding of turbulence dynamics is provided by spectral analysis and its applications. The final chapter introduces the numerical simulation of turbulent flows. This well-balanced text will interest graduate students in engineering, applied mathematics, and the physical sciences.
| Author | : Ronald Louis Fante |
| Publisher | : |
| Total Pages | : 20 |
| Release | : 1973 |
| Genre | : Plasma sheaths |
| ISBN | : |
Use transport theory we have calculated the radar cross section of an underdense turbulent wake in the limit when the scale size of the turbulence is larger than the signal wavelength. We have found that for bistatic scatter the first Born approximation is valid, even if the wake is many photon mean-free paths in extent. However, neither the Born approximation nor the modified Born approximation is valid for the nonostatic radar cross section when the wake is many photon mean-free paths in extent. In this case a modified result, derived in this report, must be used.
| Author | : Paul E. Hardisty |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2019 |
| Genre | : Family secrets |
| ISBN | : 9781912374717 |
A stark, eye-opening and exquisitely poignant new novel spanning the globe and probing the issues that define our times. As a young man comes to terms with his father's death, he is forced to face his own demons, and confront the possibility of change... 'This is a remarkably well-written, sophisticated novel in which the people and places all come alive on the page...' Literary Review 'Searing ... at times achieves the level of genuine poetry' Publishers Weekly Ethan Scofield returns to the place of his birth to bury his father. Hidden in one of the upstairs rooms of the old man's house he finds a strange manuscript, a collection of stories that seems to cover the whole of his father's turbulent life. As his own life starts to unravel, Ethan works his way through the manuscript, trying to find answers to the mysteries that have plagued him since he was a child. What happened to his little brother? Why was his mother taken from him? And why, in the end, when there was no one else left, did his own father push him away? Swinging from the coral cays of the Caribbean to the dangerous deserts of Yemen and the wild rivers of Africa, Turbulent Wake is a bewitching, powerful and deeply moving story of love and loss ... of the indelible damage we do to those closest to us and, ultimately, of the power of redemption in a time of change. 'The quality of Hardisty's writing and the underlying truth of his plots sets this above many other thrillers' West Australia 'Turbulent Wake is moving, it caused me to ache deep inside, oh, and it is also a rather beautiful read too' LoveReading 'The writing is sublime SO different from the Claymore Straker series but just as compelling - a round-the-world journey through a lifetime of regrets. Wow ' Off-the-Shelf Books 'If you like literary fiction with heart then you MUST read the stunning Turbulent Wake - powerful, evocative, profound; I savoured every word' Karen Cole 'Turbulent Wake is a truly beautiful story ... what a special book this is' Jen Meds Book Reviews 'Evocative, compelling, a pull-at-your-heartstrings page turning read A book that you will absorb into your very soul Go and get a copy today ' Crime Book Junkie 'Turbulent Wake is a beautifully written and atmospheric read that will stay with me for a long time ... The author's vivid descriptions are wonderful and I felt like I had a fly on the wall view of everything that was happening' Over the Rainbow Book Blog 'Powerful, evocative, profound; I savoured every word' Hair Past a Freckle 'Compelling and inspiring, it is an adventure, a journey, a exploration of life, a fascinating novel' Swirl & Thread 'Heartbreaking, honest, wonderful. This novel needs to be read by many, so they can see what damage they cause' Steph's Book Blog
| Author | : B. R. Ramaprian |
| Publisher | : |
| Total Pages | : 346 |
| Release | : 1981 |
| Genre | : Aerofoils |
| ISBN | : |
| Author | : Peter S. Bernard |
| Publisher | : John Wiley & Sons |
| Total Pages | : 516 |
| Release | : 2002-08-19 |
| Genre | : Technology & Engineering |
| ISBN | : 9780471332190 |
Provides unique coverage of the prediction and experimentation necessary for making predictions. * Covers computational fluid dynamics and its relationship to direct numerical simulation used throughout the industry. * Covers vortex methods developed to calculate and evaluate turbulent flows. * Includes chapters on the state-of-the-art applications of research such as control of turbulence.
| Author | : C. Hah |
| Publisher | : |
| Total Pages | : 180 |
| Release | : 1982 |
| Genre | : Aerodynamics |
| ISBN | : |
| Author | : L.J.S. Bradbury |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 400 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642699960 |
The Fourth International Symposium on Turbulent Shear Flows took place at Karlsruhe University in Germany. The papers presented at this Symposium encompassed a similar range to that of the previous meetings, with greater emphasis placed on experimental work, and continued a trend towards the examination of complex flows. Once again, three dimensional, recirculating and reacting flows featured strongly in the programme and were complemented by consideration of two-phase flows and discussions of both numerical and experimental techniques. The Symposium brought together some 300 participants from all over the world, and it was evident that there is a need for Turbulent Shear Flows Symposia, in order to obtain and communicate new information useful to researchers in the field of turbulent flows and of interest to engineers who design flow equipment. This volume contains 27 papers selected from more than 100 presentations at the Symposium which have been reviewed and edited before publication. Together they provide an indication of the status of current knowledge on the subjects represented at the Sympo sium. They are grouped into four sections, namely: • Fundamentals • Free Flows • Boundary Layers • Reacting Flows As in previous volumes in this series, each section begins with an introductory article con sidering the papers which follow in the broader context of available literature and current research.
| Author | : J.P. Bonnet |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 504 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 9401120986 |
The existence and crucial role played by large-scale, organized motions in turbulent flows are now recognized by industrial, applied and fundamental researchers alike. It has become increasingly evident that coherent structures influence mixing, noise, vibration, heat transfer, drag, etc... The accelera tion of the development of both experimental and computational programs devoted to this topic has been evident at several recent international meet ings. One of the first questions which experimentalists or numerical analysts are faced with is: how can these structures be separated from the background turbulence? This is a nontrivial task because the coherent structures are gen erally embedded in a random field and the technique used to determine when and where certain structures are passing, or their averaged characteristics (in the more probable or dominant role sense) is directly related to the definition of the coherent structure. Several methods or approaches are available and the choice of a particular one is generally dependent on the desired informa tion. This choice depends not only on the definition of the structure, but also on the experimental and numerical capabilities available to the researcher.
