Interaction Of Disturbances In Shear Flows

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Interaction Of Disturbances In Shear Flows

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Author : Viktor V. Babenko
language : en
Publisher: Elsevier
Release Date : 2024-02-23

Interaction Of Disturbances In Shear Flows written by Viktor V. Babenko and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-23 with Mathematics categories.

Interaction of Disturbances in Shear Flows aims to provide a comprehensive, in-depth overview of the current state of knowledge on the subject. Authored by a recognized expert with decades of experience and many software patents to his credit, the volume covers advances in computational fluid dynamics to showcase innovative ways to apply physical measurements and visualization patterns to solve various aero- and hydrodynamic problems. It also delves into analytical methodologies to compare and contrast with the theoretical models most commonly used in the field. Additionally, it demonstrates the significance of comprehending and managing disturbances in shear flows, discussing practical applications of the research to optimize the design of aircraft, automotive vehicles, and marine vessels, with a strong emphasis on enhancing aeroand hydrodynamic efficiency, fuel economy, and the reduction of harmful emissions. Academia and industry readers alike will find this a useful resource to equip themselves with the tools needed to understand and address practical engineering challenges encountered in their studies or work. Proposes a bionic approach for the control of shear flows Presents data obtained through flow visualization using the tellurium method and multicolored tinted jets Offers a complete picture of shear flows, taking an interdisciplinary approach Applies practical solutions to problems being studied both in academia and industry

Physics Of Transitional Shear Flows

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Author : Andrey V. Boiko
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-09-15

Physics Of Transitional Shear Flows written by Andrey V. Boiko and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-15 with Science categories.

Starting from fundamentals of classical stability theory, an overview is given of the transition phenomena in subsonic, wall-bounded shear flows. At first, the consideration focuses on elementary small-amplitude velocity perturbations of laminar shear layers, i.e. instability waves, in the simplest canonical configurations of a plane channel flow and a flat-plate boundary layer. Then the linear stability problem is expanded to include the effects of pressure gradients, flow curvature, boundary-layer separation, wall compliance, etc. related to applications. Beyond the amplification of instability waves is the non-modal growth of local stationary and non-stationary shear flow perturbations which are discussed as well. The volume continues with the key aspect of the transition process, that is, receptivity of convectively unstable shear layers to external perturbations, summarizing main paths of the excitation of laminar flow disturbances. The remainder of the book addresses the instability phenomena found at late stages of transition. These include secondary instabilities and nonlinear features of boundary-layer perturbations that lead to the final breakdown to turbulence. Thus, the reader is provided with a step-by-step approach that covers the milestones and recent advances in the laminar-turbulent transition. Special aspects of instability and transition are discussed through the book and are intended for research scientists, while the main target of the book is the student in the fundamentals of fluid mechanics. Computational guides, recommended exercises, and PowerPoint multimedia notes based on results of real scientific experiments supplement the monograph. These are especially helpful for the neophyte to obtain a solid foundation in hydrodynamic stability. To access the supplementary material go to extras.springer.com and type in the ISBN for this volume.

Wave Interactions And Fluid Flows

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Author : Alex D. D. Craik
language : en
Publisher: Cambridge University Press
Release Date : 1988-07-07

Wave Interactions And Fluid Flows written by Alex D. D. Craik and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-07-07 with Mathematics categories.

Wave Interactions and Fluid Flows is a coherent, up-to-date and comprehensive account of theory and experiment on wave-interaction phenomena, both in fluids at rest and in shear flows. On the one hand, this includes water waves, internal waves, their evolution and interaction and associated wave-driven mean flows; on the other, phenomena of nonlinear hydrodynamic stability, especially those leading to the onset of turbulence. Close similarities - and crucial differences - exist between these two classes of phenomena and their treatment in this single study provides a particularly valuable bridge between more specialised, but related, disciplines. As a result, this unique book will appeal to researchers and graduate students of fluid mechanics in its widest sense, including the study of wave-interaction phenomena in such diverse fields as meteorology, aeronautical and hydraulic engineering, optics, solar physics and population dynamics. Dr Craik is an active researcher of long-standing at the University of St Andrews and has wide experience in the field of fluid mechanics.

Statistical Fluid Mechanics

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Author : Andre? Sergeevich Monin
language : en
Publisher: Courier Corporation
Release Date : 2007-01-01

Statistical Fluid Mechanics written by Andre? Sergeevich Monin and has been published by Courier Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-01 with Science categories.

"If ever a book on turbulence could be called definitive," declared Science, "it is this book by two of Russia's most eminent and productive scientists in turbulence, oceanography, and atmospheric physics." Noted for its clarity as well as its comprehensive treatment, this two-volume set serves as text or reference. 1971 edition.

Boundary Layer Flow Over Elastic Surfaces

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Author : Viktor V. Babenko
language : en
Publisher: Butterworth-Heinemann
Release Date : 2012-10-23

Boundary Layer Flow Over Elastic Surfaces written by Viktor V. Babenko and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-23 with Science categories.

Coverage includes: Experimental findings around coherent vortical structures (CVS) in turbulent boundary layers and methods of controlling them Static and dynamic mechanical characteristics of elastic composite coatings, as well as new techniques and devices developed for their measurement Combined methods of flow control and drag reduction, including the effect of injection of polymer solutions, elastic coatings and generated longitudinal vortical structures on hydrodynamic resistance Intended as a reference for senior engineers and researchers concerned with the drag reduction and the dynamics of turbulent boundary layer flows, Boundary Layer Flow over Elastic Surfaces provides a unique source of information on compliant surface drag reduction and the experimental techniques around it that have shown measurable and repeatable improvements over recent years.

Iutam Symposium On Nonlinear Instability And Transition In Three Dimensional Boundary Layers

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Author : Peter W. Duck
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Iutam Symposium On Nonlinear Instability And Transition In Three Dimensional Boundary Layers written by Peter W. Duck and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Most fluid flows of practical importance are fully three-dimensional, so the non-linear instability properties of three-dimensional flows are of particular interest. In some cases the three-dimensionality may have been caused by a finite amplitude disturbance whilst, more usually, the unperturbed state is three-dimensional. Practical applications where transition is thought to be associated with non-linearity in a three- dimensional flow arise, for example, in aerodynamics (swept wings, engine nacelles, etc.), turbines and aortic blood flow. Here inviscid `cross-flow' disturbances as well as Tollmien-Schlichting and Görtler vortices can all occur simultaneously and their mutual non-linear behaviour must be understood if transition is to be predicted. The non-linear interactions are so complex that usually fully numerical or combined asymptotic/numerical methods must be used. Moreover, in view of the complexity of the instability processes, there is also a growing need for detailed and accurate experimental information. Carefully conducted tests allow us to identify those elements of a particular problem which are dominant. This assists in both the formulation of a relevant theoretical problem and the subsequent physical validation of predictions. It should be noted that the demands made upon the skills of the experimentalist are high and that the tests can be extremely sophisticated - often making use of the latest developments in flow diagnostic techniques, automated high speed data gathering, data analysis, fast processing and presentation.

Air Force Research Resum S

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Author :
language : en
Publisher:
Release Date :

Air Force Research Resum S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Military research categories.

Origin Of Turbulence

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Author : Hua-Shu Dou
language : en
Publisher: Springer Nature
Release Date : 2022-03-25

Origin Of Turbulence written by Hua-Shu Dou and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-25 with Technology & Engineering categories.

This book presents the new discovery of the origin of turbulence from Navier–Stokes equations. The fully developed turbulence is found to be composed of singularities of flow field. The mechanisms of flow stability and turbulent transition are described using the energy gradient theory, which states all the flow instability and breakdown resulted from the gradient of the total mechanical energy normal to the flow direction. This approach is universal for flow instability in Newtonian flow and non-Newtonian flow. The theory has been used to solve several problems, such as plane and pipe Poiseuille flows, plane Couette flow, Taylor–Couette flow, flows in straight coaxial annulus, flows in curved pipes and ducts, thermal convection flow, viscoelastic flow, and magnet fluid flow, etc. The theory is in agreement with results from numerical simulations and experiments. The analytical method used in this book is novel and is different from the traditional approaches. This book includes the fundamental basics of flow stability and turbulent transition, the essentials of the energy gradient theory, and the applications of the theory to several practical problems. This book is suitable for researchers and graduate students.

Nonsteady Flame Propagation

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Author : George H. Markstein
language : en
Publisher: Elsevier
Release Date : 2014-12-02

Nonsteady Flame Propagation written by George H. Markstein and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-02 with Science categories.

Nonsteady Flame Propagation provides information pertinent to flame propagation in gaseous media. This book focuses on linearized treatments and the comparison of their results with experimental observations. Organized into nine chapters, this book begins with an overview of the challenge of nonlinear problems and examines the essentially nonlinear character of the flame phenomena, which has been artificially suppressed in analyses by the use of linearized perturbation treatments. This text then summarizes the development regarding rocket-shaped burners. Other chapters consider the advantages as well as the limitations of linearized analyses. This book discusses as well a general treatment of the discontinuous-flame-front model and summarizes the results of studies of burner that use secondary air. The final chapter deals with re-examining the possibilities of using pulsating combustion in propulsion or in other applications. This book is a valuable resource for chemical engineers, chemists, scientists, and research workers.

Fluid Structure Interactions In Low Reynolds Number Flows

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Author : Camille Duprat
language : en
Publisher: Royal Society of Chemistry
Release Date : 2015-11-16

Fluid Structure Interactions In Low Reynolds Number Flows written by Camille Duprat and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-16 with Science categories.

An approachable introduction to low Reynolds number flows and elasticity for those new to the area across engineering, physics, chemistry and biology.