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[美] 斯科姆(Schmid,P.J.) 著
出版社: 世界图书出版公司 ISBN:9787510070242 版次:1 商品编码:11457450 包装:平装 丛书名: 经典数学丛书 开本:24开 出版时间:2014-03-01 用纸:胶版纸 页数:556 正文语种:英文
Ⅰ Temporal Stability of Parallel Shear Flows2 Linear Inviscid Analysis2.1 Inviscid Linear Stability Equations2.2 Modal Solutions2.2.1 General Results2.2.2 Dispersive Effects and Wave Packets2.3 Initial Value Problem2.3.1 The Inviscid Initial Value Problem2.3.2 Laplace Transform Solution2.3.3 Solutions to the Normal Vorticity Equation2.3.4 Example: Couette Flow2.3.5 Localized Disturbances3 Eigensolutions to the Viscous Problem3.1 Viscous Linear Stability Equations3.1.1 The Velocity-Vorticity Formulation3.1.2 The Orr-Sommerfeld and Squire Equations3.1.3 Squire's Transformation and Squire's Theorem3.1.4 Vector Modes3.1.5 Pipe Flow3.2 Spectra and Eigenfunctions3.2.1 Discrete Spectrum3.2.2 Neutral Curves3.2.3 Continuous Spectrum3.2.4 Asymptotic Results3.3 Further Results on Spectra and Eigenfunctions3.3.1 Adjoint Problem and Bi-Orthogonality Condition3.3.2 Sensitivity of Eigenvalues3.3.3 Pseudo-Eigenvalues3.3.4 Bounds on Eigenvalues3.3.5 Dispersive Effects and Wave Packets4 The Viscous Initial Value Problem4.1 The Viscous Initial Value Problem4.1.1 Motivation4.1.2 Derivation of the Disturbance Equations4.1.3 Disturbance Measure4.2 The Forced Squire Equation and Transient Growth4.2.1 Eigenfunction Expansion4.2.2 Blasius Boundary Layer Flow4.3 The Complete Solution to the Initial Value Problem4.3.1 Continuous Formulation4.3.2 Discrete Formulation4.4 Optimal Growth4.4.1 The Matrix Exponential4.4.2 Maximum Amplification4.4.3 Optimal Disturbances4.4.4 Reynolds Number Dependence of Optimal Growth4.5 Optimal Response and Optimal Growth Rate4.5.1 The Forced Problem and the Resolvent4.5.2 Maximum Growth Rate4.5.3 Response to Stochastic Excitation4.6 Estimates of Growth4.6.1 Bounds on Matrix Exponential……Ⅱ Stability of Complex Flows and TransitionⅢ Appendix
剪切流中的稳定性和转捩 电子书 下载 mobi epub pdf txt
剪切流中的稳定性和转捩-so88
剪切流中的稳定性和转捩 pdf epub mobi txt 电子书 下载 2022
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[美] 斯科姆(Schmid,P.J.) 著
出版社: 世界图书出版公司 ISBN:9787510070242 版次:1 商品编码:11457450 包装:平装 丛书名: 经典数学丛书 开本:24开 出版时间:2014-03-01 用纸:胶版纸 页数:556 正文语种:英文
内容简介
回顾了过去10年在壁湍流和自由剪切流转捩问题的数值研究中取得的重要进展,介绍了数值方法和模式研究方面的进展,以及由此带来的关于转捩理论认识上的进展。对于壁面流动,文中主要介绍了渐进稳定流动中"跨越(bypass)转捩"研究中的各种观点。本文也简要介绍了对感受性和转捩控制方面的研究。内页插图
目录
1 Introduction and General Results1.1 Introduction1.2 Nonlinear Disturbance Equations1.3 Definition of Stability and Critical Reynolds Numbers1.3.1 Definition of Stability1.3.2 Critical Reynolds Numbers1.3.3 Spatial Evolution of Disturbances1.4 The Reynolds-Orr Equation1.4.1 Derivation of the Reynolds-Orr Equation1.4.2 The Need for Linear Growth MechanismsⅠ Temporal Stability of Parallel Shear Flows2 Linear Inviscid Analysis2.1 Inviscid Linear Stability Equations2.2 Modal Solutions2.2.1 General Results2.2.2 Dispersive Effects and Wave Packets2.3 Initial Value Problem2.3.1 The Inviscid Initial Value Problem2.3.2 Laplace Transform Solution2.3.3 Solutions to the Normal Vorticity Equation2.3.4 Example: Couette Flow2.3.5 Localized Disturbances3 Eigensolutions to the Viscous Problem3.1 Viscous Linear Stability Equations3.1.1 The Velocity-Vorticity Formulation3.1.2 The Orr-Sommerfeld and Squire Equations3.1.3 Squire's Transformation and Squire's Theorem3.1.4 Vector Modes3.1.5 Pipe Flow3.2 Spectra and Eigenfunctions3.2.1 Discrete Spectrum3.2.2 Neutral Curves3.2.3 Continuous Spectrum3.2.4 Asymptotic Results3.3 Further Results on Spectra and Eigenfunctions3.3.1 Adjoint Problem and Bi-Orthogonality Condition3.3.2 Sensitivity of Eigenvalues3.3.3 Pseudo-Eigenvalues3.3.4 Bounds on Eigenvalues3.3.5 Dispersive Effects and Wave Packets4 The Viscous Initial Value Problem4.1 The Viscous Initial Value Problem4.1.1 Motivation4.1.2 Derivation of the Disturbance Equations4.1.3 Disturbance Measure4.2 The Forced Squire Equation and Transient Growth4.2.1 Eigenfunction Expansion4.2.2 Blasius Boundary Layer Flow4.3 The Complete Solution to the Initial Value Problem4.3.1 Continuous Formulation4.3.2 Discrete Formulation4.4 Optimal Growth4.4.1 The Matrix Exponential4.4.2 Maximum Amplification4.4.3 Optimal Disturbances4.4.4 Reynolds Number Dependence of Optimal Growth4.5 Optimal Response and Optimal Growth Rate4.5.1 The Forced Problem and the Resolvent4.5.2 Maximum Growth Rate4.5.3 Response to Stochastic Excitation4.6 Estimates of Growth4.6.1 Bounds on Matrix Exponential……Ⅱ Stability of Complex Flows and TransitionⅢ Appendix
精彩书摘
1.1 Introduction Hydrodynamic stability theory is concerned with the response of a laminarflow to a disturbance of small or moderate amplitude. If the flow returns toits original laminar state one defines the flow as stable, whereas if the dis-turbance grows and causes the laminar flow to change into a different state,one defines the flow as unstable. Instabilities often result in turbulent fluidmotion, but they may also take the flow into a different laminar, usuallymore complicated state. Stability theory deals with the mathematical anal-ysis of the evolution of disturbances superposed on a laminar base flow. Inmany cases one assumes the disturbances to be small so that further sim-plifications can be justified. In particular, a linear equation governing theevolution of disturbances is desirable. As the disturbance velocities growabove a few percent of the base flow, nonlinear effects become importantand the linear equations no longer accurately predict the disturbance evo-lution. Although the linear equations have a limited region of validity theyare important in detecting physical growth mechanisms and identifyingdominant disturbance types. In this section we will derive the nonlinear equations governing the de-velopment of a disturbance on a laminar base flow, define various types ofstability, and discuss some general concepts and results. ……前言/序言
剪切流中的稳定性和转捩 电子书 下载 mobi epub pdf txt
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