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Über dieses Buch

Dimensional analysis is an essential scientific method and a powerful tool for solving problems in physics and engineering. This book starts by introducing the Pi Theorem, which is the theoretical foundation of dimensional analysis. It also provides ample and detailed examples of how dimensional analysis is applied to solving problems in various branches of mechanics. The book covers the extensive findings on explosion mechanics and impact dynamics contributed by the author’s research group over the past forty years at the Chinese Academy of Sciences.

The book is intended for research scientists and engineers working in the fields of physics and engineering, as well as graduate students and advanced undergraduates of the related fields.

Qing-Ming Tan is a former Professor at the Institute of Mechanics, the Chinese Academy of Sciences, China.



Chapter 1. Introduction

A physical law or principle is determined through experiment or theoretical work. Through analysis and synthesis, quantities related to physical problems are examined, classified, and related. Correctness is verified according to whether or not the deduction conforms to experiments and observations.
Qing-Ming Tan

Chapter 2. Fundamental Principles of Dimensional Analysis

The operation must have a unified measurement unit system. To permit operation related to physical quantities, multiple unit systems must convert to a single unit system
Qing-Ming Tan

Chapter 3. Problems in Fluid Mechanics

Application of dimensional analysis to typical problems in fluid mechanics is introduced by using a case study approach, that consists of three steps: 1. analysis of basic physical principles involved in the problem, 2. introduction of governing parameters, and 3. making useful conclusions. Some commonly used similarity criterion numbers derived through mathematical formulation of fluid flow problems are identified. Other similarity criterion numbers for some special problems are given. Flow problems are classified according to flow conditions and corresponding similarity criterion numbers are identified.
Qing-Ming Tan

Chapter 4. Problems in Solid Mechanics

Dimensional analysis can be applied to the distribution of deformation and stress in simple structures like elastic beams or plates, to three-dimensional elastic bodies as well as to the stability criterion of an Eulerian column under compression
Qing-Ming Tan

Chapter 5. Heat Conduction and Thermal Stress in Solids

Many problems involve effects that interconnect in particular ways and interfere with each other to form distinctive coupling. In other problems, coexisting effects can be considered to be decoupled. This chapter discusses problems related to heat conduction and thermal stress in solids. Generally, effects of heat conduction and thermal stress can be decoupled because the orders of magnitude of characteristic times for these effects differ considerably. The chapter discusses heat conduction, introduces a thermal stress–strain relationship and discusses the similarity law for thermal stress in solids.
Qing-Ming Tan

Chapter 6. Problems of Coupling Fluid Motion and Solid Deformation

Some natural phenomena or engineering problems relate to fluid–solid interaction that involves coupling of fluid motion and solid deformation. Typical examples are water hammers and fluttering airfoils; more complex examples include deformation of blood vessels, blood flow, and pulse phenomena in the human body. This chapter uses dimensional analysis to discuss cases related to a water hammer, elastic bearings, fluttering airfoils and vortex-excited vibration of heat exchangers.
Qing-Ming Tan

Chapter 7. Hydro-Elasto-Plastic Modeling

A hydro-elasto-plastic model shows fluid-like behavior and solid-like behavior of a body subjected to intense dynamic loading and deformation. Governing parameters and similarity parameters useful in solving real problems of explosion and high velocity impact are given 
Qing-Ming Tan

Chapter 8. Similarity Laws for Explosions

This chapter discusses propagation laws of explosion waves and fundamental principles and similarity laws of explosions in engineering technology applications that mainly concern explosive forming, explosive welding and blasting.
Qing-Ming Tan

Chapter 9. Similarity Laws for High Velocity Impacts

The antitank rod projectile came into service in the 1960s. Compared with conventional projectile length–diameter ratio of about 4, the rod projectile has length–diameter ratio of about 15 and projectile velocity of about 1.7 km/s, nearly twice the velocity of about 0.8 km/s of conventional projectiles. Rod projectile penetration depth exceeds that of conventional projectiles by as much as 1.7 times.
Qing-Ming Tan

Chapter 10. Normalization in Mathematical Simulations

This chapter discusses normalization of functions, algebraic equations, ordinary differential equations and partial differential equations. Examples demonstrate principles and applications of normalization, showing some treatments that seem to be right but are actually wrong and other treatments that are reasonable and effective.
Qing-Ming Tan

Chapter 11. Errata to: Dimensional Analysis

Qing-Ming Tan


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