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Dimensional Analysis and Physical Similarity are well understood subjects, and the general concepts of dynamical similarity are explained in this book. Our exposition is essentially different from those available in the literature, although it follows the general ideas known as Pi Theorem. There are many excellent books that one can refer to; however, dimensional analysis goes beyond Pi theorem, which is also known as Buckingham's Pi Theorem. Many techniques via self-similar solutions can bound solutions to problems that seem intractable.
A time-developing phenomenon is called self-similar if the spatial distributions of its properties at different points in time can be obtained from one another by a similarity transformation, and identifying one of the independent variables as time. However, this is where Dimensional Analysis goes beyond Pi Theorem into self-similarity, which has represented progress for researchers.
In recent years there has been a surge of interest in self-similar solutions of the First and Second kind. Such solutions are not newly discovered; they have been identified and named by Zel'dovich, a famous Russian Mathematician in 1956. They have been used in the context of a variety of problems, such as shock waves in gas dynamics, and filtration through elasto-plastic materials.
Self-Similarity has simplified computations and the representation of the properties of phenomena under investigation. It handles experimental data, reduces what would be a random cloud of empirical points to lie on a single curve or surface, and constructs procedures that are self-similar. Variables can be specifically chosen for the calculations.
Auteur
Dr. Bahman Zohuri is founder of Galaxy Advanced Engineering, Inc. a consulting company that he formed upon leaving the semiconductor and defense industries after many years as a Senior Process Engineer for corporations including Westinghouse and Intel, and then as Senior Chief Scientist at Lockheed Missile and Aerospace Corporation. During his time with Westinghouse Electric Corporation, he performed thermal hydraulic analysis and natural circulation for Inherent Shutdown Heat Removal System (ISHRS) in the core of a Liquid Metal Fast Breeder Reactor (LMFBR). While at Lockheed, he was responsible for the study of vulnerability, survivability and component radiation and laser hardening for Defense Support Program (DSP), Boost Surveillance and Tracking Satellites (BSTS) and Space Surveillance and Tracking Satellites (SSTS). He also performed analysis of characteristics of laser beam and nuclear radiation interaction with materials, Transient Radiation Effects in Electronics (TREE), Electromagnetic Pulse (EMP), System Generated Electromagnetic Pulse (SGEMP), Single-Event Upset (SEU), Blast and, Thermo-mechanical, hardness assurance, maintenance, and device technology. His consultancy clients have included Sandia National Laboratories, and he holds patents in areas such as the design of diffusion furnaces, and Laser Activated Radioactive Decay. He is the author of several books on engineering and heat transfer.
Contenu
Table of ContentsAbout the AuthorPrefaceAcknowledgmentCHAPTER ONE: Principles of the Dimensional Analysis1.1 Introduction1.2 Dimensional Analysis and Scaling Concept1.2.1 Fractal Dimension1.3 Scaling Analysis and Modeling1.4 Mathematical Basis for Scaling Analysis1.5 Dimensions, Dimensional Homogeneity, and Independent Dimensions1.6 Basics of Buckingham's (Pi) Theorem1.6.1 Some Examples of Buckingham's (Pi) Theorem1.7 Oscillations of a Star1.8 Gravity Waves on Water1.9 Dimensional Analysis Correlation for Cooking a Turkey1.10 Energy in a Nuclear Explosion1.10.1 The Basic Scaling Argument in a Nuclear Explosion1.10.2 Calculating the Differential Equations of Expanding Gas of Nuclear Explosion1.10.3 Solving the Differential Equations of Expanding Gas of Nuclear Explosion1.11 Energy in a High Intense Implosion1.12 Similarity and Estimating1.13 Self-Similarity1.14 General Results of Similarity1.14.1 Principles of Similarity1.15 Scaling Argument1.16 Self-Similarity Solutions of the First and Second Kind1.17 Conclusion1.18 ReferencesCHAPTER TWO: Dimensional Analysis: Similarity and Self-Similarity2.1 Lagrangian and Eulerian Coordinate Systems2.1.1 Arbitrary Lagrangian Eulerian (ALE) Systems2.2 Similar and Self-Similar Definitions2.3 Compressible and Incompressible Flows2.3.1 Limiting Condition for Compressibility2.4 Mathematical and Thermodynamic Aspect of Gas Dynamics2.4.1 Gas Dynamics Equations in Integral Form2.4.2 Gas Dynamics Equations in Differential Form2.4.3 Perfect Gas Equation of State2.5 Unsteady Motion of Continuous Media and Self-Similarity Methods2.5.1 Fundamental Equations of Gasdynamics in the Eulerian Form2.5.2 Fundamental Equations of Gasdynamics in the Lagrangian Form2.6 Study of Shock Waves and Normal Shock Waves2.6.1 Shock Diffraction and Reflection Processes2.7 ReferencesCHAPTER THREE: Shock Wave and High Pressure Phenomena3.1 Introduction to Blast Waves and Shock Waves3.2 Self-Similarity and Sedov - Taylor Problem3.3 Self-Similarity and Guderley Problem3.4 Physics of Nuclear Device Explosion3.4.1 Little Boy Uranium Bomb3.4.2 Fat Man Plutonium Bomb3.4.3 Problem of Implosion and Explosion3.4.4 Critical Mass and Neutron Initiator for Nuclear Devices3.5 Physics of Thermonuclear Explosion3.6 Nuclear Isomer and Self-Similar Approaches3.7 Pellet Implosion Driven Fusion Energy and Self-Similar Approaches3.7.1 Linear Stability of Self-Similar Flow in D-T Pellet Implosion3.8 Plasma Physics and Particle-in-Cell Solution (PIC)3.9 Similarity Solutions for Partial and Differential Equations3.10 Dimensional Analysis and Intermediate Asymptotic3.11 Asymptotic Analysis and Singular Perturbation Theory3.12 Regular and Singular Perturbation Problems3.13 Eigenvalue Problems3.14 Quantum Mechanics3.15 Summary3.16 ReferencesCHAPTER FOUR: Similarity Methods for Nonlinear Problems4.1 Similarity Solutions for Partial and Differential Equations4.2 Fundamental Solutions of the Diffusion Equation Using Similarity Method4.3 Similarity Method and Fundamental Solutions of the Fourier Equation4.4 Fundamental Solutions of the Diffusion Equation; Global Affinity4.5 Solution of the Boundary-Layer Equations for Flow over a Flat Plate4.6 Solving First Order Partial Differential Equations using Similarity Method4.6.1 Solving Quasilinear Partial Differential...