流體中的波

內容概要

　　本書是一部講述流體力學的基礎理論教程，是一部很難超越的經典。自1978年首次出版以來，本書曾于1978,1979,1980,1987,1990,1993,1996,2001,2005多次重印出版。書中包括了許多十分重要和有趣圖片，彌補了有些學生不能走進實驗室現(xiàn)場觀察流體現(xiàn)象的缺憾。每章末都包含有習題。和許多同類書比較，本書對于激發(fā)數學專業(yè)和工程專業(yè)的學生學習本專業(yè)具有很大的幫助作用。
　　讀者對象：物理專業(yè)，應用數學專業(yè)的學生，老師以及工程人員。

作者簡介

作者：（英國）萊特希爾（James Lighthill）

書籍目錄

preface
　prologue
chapter 1. sound waves
　1.1 the wave equation
　1.2 the speed of sound
　1.3 acoustic energy and intensity
　1.4 the simple source
　1.5 the acoustic dipole
　1.6 compact source regions in general
　1.7 compact source regions with dipole far fields
　1.8 ripple-tank simulations
　1.9 scattering by compact bodies
　1.10 quadrupole radiation
　1.11 radiation from spheres
　1.12 radiation from plane walls
　1.13 dissipation of acoustic energy
　exercises on chapter 1
chapter 2. one-dimensional waves in fluids
　2.1 longitudinal waves in tubes and channels
　2.2 examples, including elastic tubes and open channels
　2.3 transmission of waves through junctions
　2.4 propagation through branching systems
　2.5 cavities, constrictions, resonators
　2.6 linear propagation with gradually varying composition and
cross-section
　2.7 frictional attenuation
　2.8 nonlinear theory of plane waves
　2.9 simple waves
　2.10 shock waves
　2.11 theory of simple waves incorporating weak shock waves
　2.12 hydraulic jumps
　2.13 nonlinear propagation with gradually varying composition and
cross-section
　2.14 nonlinear geometrical acoustics
　exercises on chapter 2
chapter 3. water waves
　3.1 surface gravity waves
　3.2 sinusoidal waves on deep water
　3.3 sinusoidal waves on water of arbitrary, but uniform,
depth
　3.4 ripples
　3.5 attenuation
　3.6 introduction to group velocity
　3.7 the fourier analysis of dispersive systems
　3.8 energy propagation velocity
　3.9 wave patterns made by obstacles in a steady stream
　3.10 ship waves
　exercises on chapter 3
chapter 4. internal waves
　4.1 introduction to internal gravity waves
　4.2 combined theory of sound and internal waves
　4.3 internal waves in the ocean and in the atmosphere
　4.4 introduction to anisotropic dispersion
　4.5 general theory of ray tracing
　4.6 ray tracing in a wind
　4.7 steady streaming generated by wave attenuation
　4.8 stationary phase in three dimensions
　4.9 general theory of oscillating sources of waves
　4.10 internal waves generated by an oscillating source
　4.11 caustics
　4.12 wave generation by travelling forcing effects
　4.13 waveguides
exercises on chapter 4
epilogue
　part 1 a variety of waves in fluids
　part 2 nonlinear effects on dispersive wave propagation
bibliography
(indexed as pages a to q)
　part 1 some basic texts
　part 2 acoustic literature
　part 3 water-wave literature.
　part 4 stratified-fluids literature
　part 5 a bibliography for the epilogue
notation list
author index
subject index

章節(jié)摘錄

版權頁：   插圖：   We now consider what features in real plane waves of sound prevent these impossible deformations of waveforms in general,and then analyse,taking those features into account,the real wave generated by impulsive motion of a piston into fluid.Note that the only features which can modify our conclusions on simple-wave propagation are dissipative processes,since the Riemann theory（section 2.8）underlying our conclusions is exact for waves subject only to nondissipative processes.Out of the various dissipative processes considered in sections1.13 and 2.7,we must find therefore whether any can produce effects big enough and fast enough to annul a powerful and rapid tendency for transformations of waveform like those between figures 31 and 32.

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