Internal Flow

Internal Flow

Author: E. M. Greitzer

Publisher: Cambridge University Press

Published: 2007-02-26

Total Pages: 739

ISBN-13: 1139451111

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This book describes the analysis and behaviour of internal flows encountered in propulsion systems, fluid machinery (compressors, turbines and pumps) and ducts (diffusers, nozzles and combustion chambers). The focus is on phenomena that are important in setting the performance of a broad range of fluid devices. The authors show that even for complex processes one can learn a great deal about the behaviour of such devices from a clear understanding and rigorous use of basic principles. Throughout the book they illustrate theoretical principles by reference to technological applications. The strong emphasis on fundamentals, however, means that the ideas presented can be applied beyond internal flow to other types of fluid motion. The book equips students and practising engineers with a range of new analytical tools. These tools offer enhanced interpretation and application of both experimental measurements and the computational procedures that characterize modern fluids engineering.


Swirling Flows and Flames

Swirling Flows and Flames

Author: Toufik Boushaki

Publisher: BoD – Books on Demand

Published: 2019-06-26

Total Pages: 120

ISBN-13: 1838807438

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Swirl flows are used in a wide range of industrial applications. In non-reacting cases, examples of applications include vortex amplifiers and reactors, heat exchangers, jet pumps, and cyclone separators. In reacting cases, swirlers are widely used in combustion systems, such as gas turbines, industrial furnaces, boilers, gasoline and diesel engines, and many other practical heating devices. Effects of using swirl on flow and combustion are significant and varied, and concern, for example, aerodynamics, mixing, flame stability, intensity of combustion, and pollutant emissions. The purpose of this book is to present recent research efforts to understand and characterize swirling flows of different types and in different applications. These include gaseous, liquid, and solid fuels in order to enhance combustion systems and their energy efficiency. Swirl flows are very complex and the studies proposed in this project are based on different means, including theoretical calculations, numerical modeling, and experimental measurements.


Swirling Flow Problems at Intakes

Swirling Flow Problems at Intakes

Author: J. Knauss

Publisher: Routledge

Published: 2017-11-01

Total Pages: 125

ISBN-13: 1351412159

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Fundamentals of vortex intake flow; Results theoretical & experimental work; Prediction of critical submergence; Modeling of vortices & swirling flows; Design; Intake structures; Pump sumps; Vortex-flow intakes. This volume forms an essential reference work for anyone involved in intakes, either as a practising design engineer or research worker. Water Power & Dam Constr., July 1988.The book is essential reading for postgraduate students & researchers alike and a very valuable aid to design engineers. Hydrol.Sc.Jrl., 33(3), 1988.


Cellular Flows

Cellular Flows

Author: Vladimir Shtern

Publisher: Cambridge University Press

Published: 2018-02-08

Total Pages: 590

ISBN-13: 110831421X

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A cell, whose spatial extent is small compared with a surrounding flow, can develop inside a vortex. Such cells, often referred to as vortex breakdown bubbles, provide stable and clean flame in combustion chambers; they also reduce the lift force of delta wings. This book analyzes cells in slow and fast, one- and two-fluid flows and describes the mechanisms of cell generation: (a) minimal energy dissipation, (b) competing forces, (c) jet entrainment, and (d) swirl decay. The book explains the vortex breakdown appearance, discusses its features, and indicates means of its control. Written in acceptable, non-math-heavy format, it stands to be a useful learning tool for engineers working with combustion chambers, chemical and biological reactors, and delta-wing designs.


Flowfield Modeling and Diagnostics

Flowfield Modeling and Diagnostics

Author: Ashwani K. Gupta

Publisher: Taylor & Francis

Published: 1985

Total Pages: 426

ISBN-13: 9780856263286

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First published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.


Counterflows

Counterflows

Author: Vladimir Nikolaevich Shtern

Publisher: Cambridge University Press

Published: 2012-10-15

Total Pages: 485

ISBN-13: 1107027594

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This book discusses the physical mechanisms that drive counterflows, examining how they emerge, develop, become double and multiple counterflows and comprise both global and local circulations. Counterflows play an important role in nature and technology. A natural example is the Gulf Stream and the opposite flow in the ocean depths. Technological applications include hydrocyclones, vortex tubes and vortex combustors. These elongated counterflows are wildly turbulent but survive intense mixing, a seeming paradox. Local counterflows, whose spatial extent is small compared with that of surrounding flows, occur behind bluff bodies and in swirling streams. The latter are often referred to as vortex breakdown bubbles, which occur in tornadoes and above delta wings. Most scale counterflows are cosmic bipolar jets. Most miniature counterflows occur in capillary menisci of electrosprays and fuel atomisers.


Gas Turbine Combustion

Gas Turbine Combustion

Author: Arthur H. Lefebvre

Publisher: CRC Press

Published: 2010-04-26

Total Pages: 560

ISBN-13: 1420086057

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Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to po


Coarse Grained Simulation and Turbulent Mixing

Coarse Grained Simulation and Turbulent Mixing

Author: Fenando F. Grinstein

Publisher: Cambridge University Press

Published: 2016-06-30

Total Pages: 481

ISBN-13: 1107137047

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Reviews our current understanding of the subject. For graduate students and researchers in computational fluid dynamics and turbulence.


Turbulent Flows

Turbulent Flows

Author: Jean Piquet

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 767

ISBN-13: 3662035596

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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.