Doug Mclean

Understanding Aerodynamics (eBook, ePUB)

Arguing from the Real Physics

• Format: ePub

Produktbeschreibung

Much-needed, fresh approach that brings a greater insight into the physical understanding of aerodynamics Based on the author's decades of industrial experience with Boeing, this book helps students and practicing engineers to gain a greater physical understanding of aerodynamics. Relying on clear physical arguments and examples, Mclean provides a much-needed, fresh approach to this sometimes contentious subject without shying away from addressing "real" aerodynamic situations as opposed to the oversimplified ones frequently used for mathematical convenience. Motivated by the belief that engineering practice is enhanced in the long run by a robust understanding of the basics as well as real cause-and-effect relationships that lie behind the theory, he provides intuitive physical interpretations and explanations, debunking commonly-held misconceptions and misinterpretations, and building upon the contrasts provided by wrong explanations to strengthen understanding of the right ones. * Provides a refreshing view of aerodynamics that is based on the author's decades of industrial experience yet is always tied to basic fundamentals. * Provides intuitive physical interpretations and explanations, debunking commonly-held misconceptions and misinterpretations * Offers new insights to some familiar topics, for example, what the Biot-Savart law really means and why it causes so much confusion, what "Reynolds number" and "incompressible flow" really mean, and a real physical explanation for how an airfoil produces lift. * Addresses "real" aerodynamic situations as opposed to the oversimplified ones frequently used for mathematical convenience, and omits mathematical details whenever the physical understanding can be conveyed without them.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 576
• Erscheinungstermin: 7. Dezember 2012
• Englisch
• ISBN-13: 9781118454220
• Artikelnr.: 37346311

Autorenporträt

Doug Mclean, Boeing Commercial Airplanes, USA Doug McLean is a Boeing Technical Fellow in the Enabling Technology and Research unit within Aerodynamics Engineering at Boeing Commercial Airplanes. He received a BA in physics from the University of California at Riverside in 1965 and a PhD in aeronautical engineering from Princeton University in 1970. He joined the Boeing Commercial Airplane Group in 1974 and has worked there ever since on a range of problems, both computational and experimental, in the areas of viscous flow, drag reduction, and aerodynamic design. Computer programs he developed for the calculation of three-dimensional boundary layers and swept shock/boundary-layer interactions were in use by wing-design groups at Boeing for many years.

Inhaltsangabe

Foreword xi Series Preface xiii Preface xv List of Symbols xix 1
Introduction to the Conceptual Landscape 1 2 From Elementary Particles to
Aerodynamic Flows 5 3 Continuum Fluid Mechanics and the Navier-Stokes
Equations 13 3.1 The Continuum Formulation and Its Range of Validity 13 3.2
Mathematical Formalism 16 3.3 Kinematics: Streamlines, Streaklines,
Timelines, and Vorticity 18 3.4 The Equations of Motion and their Physical
Meaning 33 3.5 Cause and Effect, and the Problem of Prediction 40 3.6 The
Effects of Viscosity 43 3.7 Turbulence, Reynolds Averaging, and Turbulence
Modeling 48 3.8 Important Dynamical Relationships 55 3.9 Dynamic Similarity
60 3.10 "Incompressible" Flow and Potential Flow 66 3.11 Compressible Flow
and Shocks 70 4 Boundary Layers 79 4.1 Physical Aspects of Boundary-Layer
Flows 80 4.2 Boundary-Layer Theory 99 4.3 Flat-Plate Boundary Layers and
Other Simplified Cases 117 4.4 Transition and Turbulence 130 4.5 Control
and Prevention of Flow Separation 150 4.6 Heat Transfer and Compressibility
158 4.7 Effects of Surface Roughness 162 5 General Features of Flows around
Bodies 163 5.1 The Obstacle Effect 164 5.2 Basic Topology of Flow
Attachment and Separation 168 5.3 Wakes 186 5.4 Integrated Forces: Lift and
Drag 189 6 Drag and Propulsion 191 6.1 Basic Physics and Flowfield
Manifestations of Drag and Thrust 192 6.2 Drag Estimation 241 6.3 Drag
Reduction 250 7 Lift and Airfoils in 2D at Subsonic Speeds 259 7.1
Mathematical Prediction of Lift in 2D 260 7.2 Lift in Terms of Circulation
and Bound Vorticity 265 7.3 Physical Explanations of Lift in 2D 269 7.4
Airfoils 307 8 Lift and Wings in 3D at Subsonic Speeds 359 8.1 The
Flowfield around a 3D Wing 359 8.2 Distribution of Lift on a 3D Wing 376
8.3 Induced Drag 385 8.4 Wingtip Devices 411 8.5 Manifestations of Lift in
the Atmosphere at Large 427 8.6 Effects of Wing Sweep 444 9 Theoretical
Idealizations Revisited 471 9.1 Approximations Grouped According to how the
Equations were Modified 471 9.2 Some Tools of MFD (Mental Fluid Dynamics)
482 10 Modeling Aerodynamic Flows in Computational Fluid Dynamics 491 10.1
Basic Definitions 493 10.2 The Major Classes of CFD Codes and Their
Applications 493 10.3 Basic Characteristics of Numerical Solution Schemes
501 10.4 Physical Modeling in CFD 508 10.5 CFD Validation? 515 10.6
Integrated Forces and the Components of Drag 516 10.7 Solution
Visualization 517 10.8 Things a User Should Know about a CFD Code before
Running it 524 References 527 Index 539

Rezensionen

"As someone who has been involved with aerodynamics for more years than I care to remember, I have rarely come across a book that is so readable and that provides so many (to me a least) genuinely new insights into the subject and its applications. This book should be high on the wish list of any practising aerodynamicist, whether in industry or academia." (Aeronautical Journal, 1 August 2013)

"This is a sophisticated book for people immersed in the study of fluid dynamics and aerodynamics; it will give them in-depth knowledge of both the physical phenomena and the mathematical equations that are used to describe and predict these phenomena. Summing Up: Recommended. Graduate students in aerospace engineering, researchers/faculty, and aircraft design professionals." (Choice, 1 July 2013)

"Based on the author's decades of industrial experience with Boeing, this book helps students and practicing engineers to gain a greater physical understanding of aerodynamics. Relying on clear physical arguments and examples, Mcleanprovides a much-needed, fresh approach to this sometimes contentious subject without shying away from addressing "real" aerodynamic situations as opposed to the oversimplified ones frequently used for mathematical convenience." (Expofairs.com, 11 March 2013)