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Much-needed, fresh approach that brings a greater insight intothe physical understanding of aerodynamics
Based on the author's decades of industrial experiencewith Boeing, this book helps students and practicing engineers togain a greater physical understanding of aerodynamics.
Klappentext A real understanding of aerodynamics must go beyond mastering the mathematical formalism of the theories and come to grips with the physical cause-and-effect relationships that the theories represent. In addition to the math, which applies most directly at the local level, intuitive physical interpretations and explanations are required if we are to understand what happens at the flowfield level. This book aims to promote such physical understanding.Understanding Aerodynamics: Arguing from the Real Physics provides a more thorough review of the physical underpinnings of fluid mechanics than is typical of conventional aerodynamics books, and it covers topics specific to aerodynamics with greater physical rigor. Many of the discussions and explanations in the book are novel in the sense that they attempt to remedy incompleteness or inconsistencies in previously available sources. Examples include the discussion of how aerodynamics fits in with modern physical theory in general, the explanations and discussions of the "induction" fallacy, the effect of surface roughness on turbulent skin friction, the basic mechanism for the lift on an airfoil, and the global pressure and momentum-flux balances in the flowfield around a lifting 3D wing.This book provides: An understanding of what the equations and theories of aerodynamics really mean Real physical explanations for aerodynamic phenomena such as lift Discussions of important topics that are often missing in other aerodynamics books, such a three-dimensional flow in boundary layers A broad view of the field and how it all fits togetherUnderstanding Aerodynamics: Arguing from the Real Physics meticulously captures the results of the author's decades of pondering, discussing, and arguing the physical aspects of aerodynamic flows and is sure to help practicing engineers, as well as students, to gain a greater physical understanding of aerodynamics. Zusammenfassung Much-needed, fresh approach that brings a greater insight into the physical understanding of aerodynamicsBased 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. 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. Inhaltsverzeichnis Foreword xiSeries Preface xiiiPreface xvList of Symbols xix1 Introduction to the Conceptual Landscape 12 From Elementary Particles to Aerodynamic Flows 53 Continuum Fluid Mechanics and the Navier-St...
Autorentext
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.
Klappentext
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, 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. 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.
Inhalt
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…