Study of the Effects of Centrifugal Instabilities on Flow in a 40 to 1 Aspect Ratio Rectangular Curved Channel, for Dean Numbers from 35 to Fully Turbulent Conditions

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ISBN 13 :
Total Pages : 175 pages
Book Rating : 4.:/5 (591 download)

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Book Synopsis Study of the Effects of Centrifugal Instabilities on Flow in a 40 to 1 Aspect Ratio Rectangular Curved Channel, for Dean Numbers from 35 to Fully Turbulent Conditions by : William A. Fields

Download or read book Study of the Effects of Centrifugal Instabilities on Flow in a 40 to 1 Aspect Ratio Rectangular Curved Channel, for Dean Numbers from 35 to Fully Turbulent Conditions written by William A. Fields and published by . This book was released on 1990 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and structure of Dean vortices in a high aspect ratio curved channel were measured and studied for Dean numbers from 35 to fully turbulent conditions. Mean vorticity components were determined from measurements of the three components of mean velocity, which were measured using a miniature five-hole pressure probe. Streamwise, radial and spanwise vorticity components measured 120 deg from the start of curvature, show evidence of Dean vortices in the time-averaged flow field. Peak streamwise and peak spanwise vorticity, as well as streamwise circulation, generally increase as the Dean number increases from 60 to 240. Peak radial vorticity increases as Dean numbers vary from 60 to about 160. Spectra obtained from hot-wire probes show evidence of different frequency events, including twisting and undulation. Twisting is apparent for Dean numbers of 135 to 160 while undulation is observed at lower Dean numbers. Flow visualization results illustrate a variety of time dependent events in the channel.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government reports annual index

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Publisher :
ISBN 13 :
Total Pages : 1388 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Government reports annual index by :

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Instability and Transition in Curved Channel Flow

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Publisher : Ann Arbor, Mich. : University Microfilms International
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Instability and Transition in Curved Channel Flow by : Warren Hugh Finlay

Download or read book Instability and Transition in Curved Channel Flow written by Warren Hugh Finlay and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1987 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Influence of Rotation on Flow in a Long Rectangular Channel

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ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis The Influence of Rotation on Flow in a Long Rectangular Channel by : R. M. Halleen

Download or read book The Influence of Rotation on Flow in a Long Rectangular Channel written by R. M. Halleen and published by . This book was released on 1967 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation is reported of the flow regimes and structures in flow through a rectangular channel rotating about an axis perpendicular to the relative velocity vector of the narrow walls of the channel. Flow regimes for the wall layers of the leading and trailing surfaces as functions of the Reynolds Number and a nondimensional rotation parameter are delineated. Flow regime data were obtained primarily from wall-slot dye injection and photography. Mean velocity profiles, wall shear, and reduced pressure across the channel are also given. For no rotation, the flow had a fully developed turbulent mean velocity profile for all cases investigated. As the speed of rotation is increased, important changes in the wall structures, shear, and mean velocity profiles are observed on both walls. (Author).

Ordered and Turbulent Patterns in Taylor-Couette Flow

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Publisher : Springer Science & Business Media
ISBN 13 : 1461534380
Total Pages : 351 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Ordered and Turbulent Patterns in Taylor-Couette Flow by : C. David Andereck

Download or read book Ordered and Turbulent Patterns in Taylor-Couette Flow written by C. David Andereck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seldom does a physical system, particularly one as apparently simple as the flow of a Newtonian fluid between concentric rotating cylinders, retain the interest of scientists, applied mathematicians and engineers for very long. Yet, as this volume goes to press it has been nearly 70 years since G. I. Taylor's outstanding experimental and theoretical study of the linear stability of this flow was published, and a century since the first experiments were performed on rotating cylinder viscometers. Since then, the study of this system has progressed enormously, but new features of the flow patterns are still being uncovered. Interesting variations on the basic system abound. Connections with open flows are being made. More complex fluids are used in some experiments. The vigor of the research going on in this particular example of nonequilibrium systems was very apparent at the NATO Advanced Research Workshop on "Ordered and Turbulent Patterns in Taylor Couette Flow," held in Columbus, Ohio, USA May 22-24, 1991. A primary goal of this ARW was to bring together those interested in pattern formation in the classic Taylor Couette problem with those looking at variations on the basic system and with those interested in related systems, in order to better define the interesting areas for the future, the open questions, and the features common (and not common) to closed and open systems. This volume contains many of the contributions presented during the workshop.

Survey of Heat Transfer to Near-critical Fluids

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Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Survey of Heat Transfer to Near-critical Fluids by : Robert C. Hendricks

Download or read book Survey of Heat Transfer to Near-critical Fluids written by Robert C. Hendricks and published by . This book was released on 1970 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Boundary-Layer Theory

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Publisher : Springer
ISBN 13 : 366252919X
Total Pages : 814 pages
Book Rating : 4.6/5 (625 download)

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Book Synopsis Boundary-Layer Theory by : Hermann Schlichting (Deceased)

Download or read book Boundary-Layer Theory written by Hermann Schlichting (Deceased) and published by Springer. This book was released on 2016-10-04 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.

Heat Transfer and Fluid Flow in Minichannels and Microchannels

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Publisher : Elsevier
ISBN 13 : 9780080445274
Total Pages : 492 pages
Book Rating : 4.4/5 (452 download)

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Book Synopsis Heat Transfer and Fluid Flow in Minichannels and Microchannels by : Satish Kandlikar

Download or read book Heat Transfer and Fluid Flow in Minichannels and Microchannels written by Satish Kandlikar and published by Elsevier. This book was released on 2006 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: &Quot;This book explores flow through passages with hydraulic diameters from about 1 [mu]m to 3 mm, covering the range of minichannels and microchannels. Design equations along with solved examples and practice problems are also included to serve the needs of practicing engineers and students in a graduate course."--BOOK JACKET.

Instabilities, Chaos and Turbulence

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Publisher : World Scientific
ISBN 13 : 1848163924
Total Pages : 456 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Instabilities, Chaos and Turbulence by : Paul Manneville

Download or read book Instabilities, Chaos and Turbulence written by Paul Manneville and published by World Scientific. This book was released on 2010 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book (2nd edition) is a self-contained introduction to a wide body of knowledge on nonlinear dynamics and chaos. Manneville emphasises the understanding of basic concepts and the nontrivial character of nonlinear response, contrasting it with the intuitively simple linear response. He explains the theoretical framework using pedagogical examples from fluid dynamics, though prior knowledge of this field is not required. Heuristic arguments and worked examples replace most esoteric technicalities. Only basic understanding of mathematics and physics is required, at the level of what is currently known after one or two years of undergraduate training: elementary calculus, basic notions of linear algebra and ordinary differential calculus, and a few fundamental physical equations (specific complements are provided when necessary). Methods presented are of fully general use, which opens up ample windows on topics of contemporary interest. These include complex dynamical processes such as patterning, chaos control, mixing, and even the Earth's climate. Numerical simulations are proposed as a means to obtain deeper understanding of the intricacies induced by nonlinearities in our everyday environment, with hints on adapted modelling strategies and their implementation.

Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics

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Publisher : Springer
ISBN 13 : 3319914944
Total Pages : 524 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics by : Alexander Gelfgat

Download or read book Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics written by Alexander Gelfgat and published by Springer. This book was released on 2018-07-06 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instabilities of fluid flows and the associated transitions between different possible flow states provide a fascinating set of problems that have attracted researchers for over a hundred years. This book addresses state-of-the-art developments in numerical techniques for computational modelling of fluid instabilities and related bifurcation structures, as well as providing comprehensive reviews of recently solved challenging problems in the field.

Nonlinear Flow Phenomena and Homotopy Analysis

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Publisher : Springer Science & Business Media
ISBN 13 : 364232102X
Total Pages : 197 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Nonlinear Flow Phenomena and Homotopy Analysis by : Kuppalapalle Vajravelu

Download or read book Nonlinear Flow Phenomena and Homotopy Analysis written by Kuppalapalle Vajravelu and published by Springer Science & Business Media. This book was released on 2013-07-22 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since most of the problems arising in science and engineering are nonlinear, they are inherently difficult to solve. Traditional analytical approximations are valid only for weakly nonlinear problems and often fail when used for problems with strong nonlinearity. “Nonlinear Flow Phenomena and Homotopy Analysis: Fluid Flow and Heat Transfer” presents the current theoretical developments of the analytical method of homotopy analysis. This book not only addresses the theoretical framework for the method, but also gives a number of examples of nonlinear problems that have been solved by means of the homotopy analysis method. The particular focus lies on fluid flow problems governed by nonlinear differential equations. This book is intended for researchers in applied mathematics, physics, mechanics and engineering. Both Kuppalapalle Vajravelu and Robert A. Van Gorder work at the University of Central Florida, USA.

Principles of Enhanced Heat Transfer

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Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Principles of Enhanced Heat Transfer by : Ralph L. Webb

Download or read book Principles of Enhanced Heat Transfer written by Ralph L. Webb and published by Wiley-Interscience. This book was released on 1994-03-28 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indeed, today "second generation" enhancement concepts are routing in the automotive and refrigeration industries to obtain lower cost, smaller heat exchanger size, and higher energy efficiency in system operation. And the aerospace, process, and power generation industries are not far behind.

Gas Turbine Blade Cooling

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Publisher : SAE International
ISBN 13 : 0768095026
Total Pages : 238 pages
Book Rating : 4.7/5 (68 download)

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Book Synopsis Gas Turbine Blade Cooling by : Chaitanya D Ghodke

Download or read book Gas Turbine Blade Cooling written by Chaitanya D Ghodke and published by SAE International. This book was released on 2018-12-10 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter the better. In gas turbines, the combustion temperature and the fuel efficiency are limited by the heat transfer properties of the turbine blades. However, in pushing the limits of hot gas temperatures while preventing the melting of blade components in high-pressure turbines, the use of effective cooling technologies is critical. Increasing the turbine inlet temperature also increases heat transferred to the turbine blade, and it is possible that the operating temperature could reach far above permissible metal temperature. In such cases, insufficient cooling of turbine blades results in excessive thermal stress on the blades causing premature blade failure. This may bring hazards to the engine's safe operation. Gas Turbine Blade Cooling, edited by Dr. Chaitanya D. Ghodke, offers 10 handpicked SAE International's technical papers, which identify key aspects of turbine blade cooling and help readers understand how this process can improve the performance of turbine hardware.

Radial Flow Turbocompressors

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Publisher : Cambridge University Press
ISBN 13 : 1108416675
Total Pages : 789 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Radial Flow Turbocompressors by : Michael Casey

Download or read book Radial Flow Turbocompressors written by Michael Casey and published by Cambridge University Press. This book was released on 2021-06-10 with total page 789 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the theory and engineering practice that underpins the component design and analysis of radial flow turbocompressors. Drawing upon an extensive theoretical background and years of practical experience, the authors provide descriptions of applications, concepts, component design, analysis tools, performance maps, flow stability, and structural integrity, with illustrative examples. Features wide coverage of all types of radial compressor over many applications unified by the consistent use of dimensional analysis. Discusses the methods needed to analyse the performance, flow, and mechanical integrity that underpin the design of efficient centrifugal compressors with good flow range and stability. Includes explanation of the design of all radial compressor components, including inlet guide vanes, impellers, diffusers, volutes, return channels, de-swirl vanes and side-streams. Suitable as a reference for advanced students of turbomachinery, and a perfect tool for practising mechanical and aerospace engineers already within the field and those just entering it.

Principles of Environmental Physics

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Publisher : Butterworth-Heinemann
ISBN 13 : 9780713129311
Total Pages : 308 pages
Book Rating : 4.1/5 (293 download)

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Book Synopsis Principles of Environmental Physics by : John Monteith

Download or read book Principles of Environmental Physics written by John Monteith and published by Butterworth-Heinemann. This book was released on 1990-02-15 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and up-dated edition of a highly successful textbook.