Transitional Boundary Layers in Aeronautics

Transitional Boundary Layers in Aeronautics PDF Author: R. A. W. M. Henkes
Publisher: North Holland
ISBN:
Category : Science
Languages : en
Pages : 490

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Book Description
Paperback. The book contains the proceedings of the Colloquium Transitional Boundary Layers in Aeroautics, as organized by the Royal Netherlands Academy of Arts and Sciences on 6-8 December 1995 in Amsterdam.In the external aerodynamics of aircraft, the thin boundary layer along the surface plays an important role. To a large extent, the boundary layer determines the drag of the aircraft. A better knowledge of the laminar-turbulent transition process within the boundary layer may provide technical possibilities for transition control. In this way transition can be postponed, leading to a reduction of the total drag and consequently of the fuel consumption. It is generally recognized that transition belongs to the most difficult problems in fuel mechanics. Fourteen invited papers give an overview of the state-of-the-art of transition phenomena in boundary layers along aircraft surfaces. The emphasis is on the scientific aspects of transition, but resea

Transitional Boundary Layers in Aeronautics

Transitional Boundary Layers in Aeronautics PDF Author: R. A. W. M. Henkes
Publisher: North Holland
ISBN:
Category : Science
Languages : en
Pages : 490

Get Book Here

Book Description
Paperback. The book contains the proceedings of the Colloquium Transitional Boundary Layers in Aeroautics, as organized by the Royal Netherlands Academy of Arts and Sciences on 6-8 December 1995 in Amsterdam.In the external aerodynamics of aircraft, the thin boundary layer along the surface plays an important role. To a large extent, the boundary layer determines the drag of the aircraft. A better knowledge of the laminar-turbulent transition process within the boundary layer may provide technical possibilities for transition control. In this way transition can be postponed, leading to a reduction of the total drag and consequently of the fuel consumption. It is generally recognized that transition belongs to the most difficult problems in fuel mechanics. Fourteen invited papers give an overview of the state-of-the-art of transition phenomena in boundary layers along aircraft surfaces. The emphasis is on the scientific aspects of transition, but resea

Viscous Drag Reduction in Boundary Layers

Viscous Drag Reduction in Boundary Layers PDF Author: D. Bushnell
Publisher: AIAA
ISBN: 9781600863783
Category : Boundary layer
Languages : en
Pages : 542

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Book Description


Shock Wave-Boundary-Layer Interactions

Shock Wave-Boundary-Layer Interactions PDF Author: Holger Babinsky
Publisher: Cambridge University Press
ISBN: 1139498649
Category : Technology & Engineering
Languages : en
Pages : 481

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Book Description
Shock wave-boundary-layer interaction (SBLI) is a fundamental phenomenon in gas dynamics that is observed in many practical situations, ranging from transonic aircraft wings to hypersonic vehicles and engines. SBLIs have the potential to pose serious problems in a flowfield; hence they often prove to be a critical - or even design limiting - issue for many aerospace applications. This is the first book devoted solely to a comprehensive, state-of-the-art explanation of this phenomenon. It includes a description of the basic fluid mechanics of SBLIs plus contributions from leading international experts who share their insight into their physics and the impact they have in practical flow situations. This book is for practitioners and graduate students in aerodynamics who wish to familiarize themselves with all aspects of SBLI flows. It is a valuable resource for specialists because it compiles experimental, computational and theoretical knowledge in one place.

Stability and Transition in Shear Flows

Stability and Transition in Shear Flows PDF Author: Peter J. Schmid
Publisher: Springer Science & Business Media
ISBN: 9780387989853
Category : Science
Languages : en
Pages : 578

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Book Description
A detailed look at some of the more modern issues of hydrodynamic stability, including transient growth, eigenvalue spectra, secondary instability. It presents analytical results and numerical simulations, linear and selected nonlinear stability methods. By including classical results as well as recent developments in the field of hydrodynamic stability and transition, the book can be used as a textbook for an introductory, graduate-level course in stability theory or for a special-topics fluids course. It is equally of value as a reference for researchers in the field of hydrodynamic stability theory or with an interest in recent developments in fluid dynamics. Stability theory has seen a rapid development over the past decade, this book includes such new developments as direct numerical simulations of transition to turbulence and linear analysis based on the initial-value problem.

Boundary Layer Analysis

Boundary Layer Analysis PDF Author: Joseph A. Schetz
Publisher: AIAA Education
ISBN: 9781600868238
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
Relevant to aerospace, mechanical, and civil engineers Boundary Layer Analysis, Second Edition spans the entire range of viscous fluid flows of engineering interest - from low-speed to hypersonic flows - introducing and analyzing laminar, transitional, and turbulent flows; the physics of turbulent shear flows; and turbulence models. It offers concurrent treatment of momentum, heat, and mass transfer, covering modern computational methods as well as analytical methods that are used widely in preliminary design, especially for design optimization studies. Boundary Layer Analysis, Second Edition features worked examples and homework problems employing user-friendly JAVA applets for boundary layer calculations including numerical methods. New to the second edition is a chapter introducing Navier-Stokes computational fluid dynamics.

Three-Dimensional Attached Viscous Flow

Three-Dimensional Attached Viscous Flow PDF Author: Ernst Heinrich Hirschel
Publisher: Springer Science & Business Media
ISBN: 3642413781
Category : Technology & Engineering
Languages : en
Pages : 396

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Book Description
Viscous flow is treated usually in the frame of boundary-layer theory and as two-dimensional flow. Books on boundary layers give at most the describing equations for three-dimensional boundary layers, and solutions often only for some special cases. This book provides basic principles and theoretical foundations regarding three-dimensional attached viscous flow. Emphasis is put on general three-dimensional attached viscous flows and not on three-dimensional boundary layers. This wider scope is necessary in view of the theoretical and practical problems to be mastered in practice. The topics are weak, strong, and global interaction, the locality principle, properties of three-dimensional viscous flow, thermal surface effects, characteristic properties, wall compatibility conditions, connections between inviscid and viscous flow, flow topology, quasi-one- and two-dimensional flows, laminar-turbulent transition and turbulence. Though the primary flight speed range is that of civil air transport vehicles, flows past other flying vehicles up to hypersonic speeds are also considered. Emphasis is put on general three-dimensional attached viscous flows and not on three-dimensional boundary layers, as this wider scope is necessary in view of the theoretical and practical problems that have to be overcome in practice. The specific topics covered include weak, strong, and global interaction; the locality principle; properties of three-dimensional viscous flows; thermal surface effects; characteristic properties; wall compatibility conditions; connections between inviscid and viscous flows; flow topology; quasi-one- and two-dimensional flows; laminar-turbulent transition; and turbulence. Detailed discussions of examples illustrate these topics and the relevant phenomena encountered in three-dimensional viscous flows. The full governing equations, reference-temperature relations for qualitative considerations and estimations of flow properties, and coordinates for fuselages and wings are also provided. Sample problems with solutions allow readers to test their understanding.

Laminar-Turbulent Transition

Laminar-Turbulent Transition PDF Author: H.F. Fasel
Publisher: Springer Science & Business Media
ISBN: 3662039974
Category : Science
Languages : en
Pages : 703

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Book Description
The origins of turbulent flow and the transition from laminar to turbulent flow are among the most important unsolved problems of fluid mechanics and aerodynamics. Besides being a fundamental question of fluid mechanics, there are any number of applications for information regarding transition location and the details of the subsequent turbulent flow. The JUT AM Symposium on Laminar-Turbulent Transition, co-hosted by Arizona State University and the University of Arizona, was held in Sedona, Arizona. Although four previous JUT AM Symposia bear the same appellation (Stuttgart 1979, Novosibirsk 1984, Toulouse 1989, and Sendai 1994) the topics that were emphasized at each were different and reflect the evolving nature of our understanding of the transition process. The major contributions of Stuttgart 1979 centered on nonlinear behavior and later stages of transition in two-dimensional boundary layers. Stability of closed systems was also included with Taylor vortices in different geometries. The topics of Novosibirsk 1984 shifted to resonant wave interactions and secondary instabilities in boundary layers. Pipe- and channel-flow transition were discussed as model problems for the boundary layer. Investigations of free shear layers were presented and a heavy dose of supersonic papers appeared for the first time. The character of Toulouse 1989 was also different in that 3-D boundary layers, numerical simulations, streamwise vortices, and foundation papers on receptivity were presented. Sendai 1994 saw a number of papers on swept wings and 3-D boundary layers. Numerical simulations attacked a broader range of problems.

Boundary Layer Flows

Boundary Layer Flows PDF Author: Vallampati Ramachandra Prasad
Publisher: BoD – Books on Demand
ISBN: 1839681853
Category : Mathematics
Languages : en
Pages : 236

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Book Description
Written by experts in the field, this book, "Boundary Layer Flows - Theory, Applications, and Numerical Methods" provides readers with the opportunity to explore its theoretical and experimental studies and their importance to the nonlinear theory of boundary layer flows, the theory of heat and mass transfer, and the dynamics of fluid. With the theory's importance for a wide variety of applications, applied mathematicians, scientists, and engineers - especially those in fluid dynamics - along with engineers of aeronautics, will undoubtedly welcome this authoritative, up-to-date book.

Transition, Turbulence and Combustion Modelling

Transition, Turbulence and Combustion Modelling PDF Author: A. Hanifi
Publisher: Springer Science & Business Media
ISBN: 9401145156
Category : Science
Languages : en
Pages : 540

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Book Description
This single-volume work gives an introduction to the fields of transition, turbulence, and combustion modeling of compressible flows and provides the physical background for today’s modeling approaches in these fields. It presents basic equations and discusses fundamental aspects of hydrodynamical instability.

Hydrodynamic Instability and Transition to Turbulence

Hydrodynamic Instability and Transition to Turbulence PDF Author: Akiva M. Yaglom
Publisher: Springer Science & Business Media
ISBN: 9400742371
Category : Technology & Engineering
Languages : en
Pages : 611

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Book Description
This book is a complete revision of the part of Monin & Yaglom's famous two-volume work "Statistical Fluid Mechanics: Mechanics of Turbulence" that deals with the theory of laminar-flow instability and transition to turbulence. It includes the considerable advances in the subject that have been made in the last 15 years or so. It is intended as a textbook for advanced graduate courses and as a reference for research students and professional research workers. The first two Chapters are an introduction to the mathematics, and the experimental results, for the instability of laminar (or inviscid) flows to infinitesimal (in practice "small") disturbances. The third Chapter develops this linear theory in more detail and describes its application to particular problems. Chapters 4 and 5 deal with instability to finite-amplitude disturbances: much of the material has previously been available only in research papers.