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基于多物理场分析的喷嘴结构设计

摘要第3-9页
Abstract第9-17页
Nomenclature第24页
Abbreviations第24-25页
Chapter 1 Introduction第25-36页
    1.1 The purpose and significance of the research第25页
    1.2 Development and research status of aero acoustics第25-27页
    1.3 Research background and present situation of jet noise第27-30页
    1.4 Outline of the Thesis第30-31页
    1.5 A presentation on Fluid Flow第31-36页
        1.5.1 Definition第31页
        1.5.2 Types of Fluid Flow第31-33页
        1.5.3 Flow Equations第33-34页
        1.5.4 Area ratio第34-36页
Chapter 2 Types and Characteristics of Nozzle第36-63页
    2.1 Definition第36页
    2.2 Types of nozzles第36-43页
    2.3 Nozzle flows第43-50页
    2.4 Introductions to Aeroacoustics第50-51页
    2.5 Turbulence in nozzle第51-63页
        2.5.1 Turbulent Flow Structures第52-55页
        2.5.2 Turbulence Models Available in FLUENT第55-56页
        2.5.3 The k–εTurbulence Models第56-57页
        2.5.4 Large Eddy Simulation(LES)第57-58页
        2.5.5 Boundary Layer Separation第58-60页
        2.5.6 Boundary Layer and Nozzle Flow Separation第60-63页
Chapter 3 Modeling Descriptions第63-69页
    3.1 Governing Equations of Fluid Flow第63-65页
        3.1.1 Mass is conserved(Law of Mass Conservation)第63页
        3.1.2 Momentum is conserved(Newton's Second Law)第63-64页
        3.1.3 Energy is conserved(First Law of Thermodynamics)第64-65页
    3.2 Turbulence Modeling第65-67页
        3.2.1Closure problem第65页
        3.2.2 Calculating Turbulent Viscosity第65-66页
        3.2.3 Eddy viscosity第66-67页
    3.3 Near wall treatment and Y+value第67-69页
Chapter 4 Fundamental of spray noise第69-74页
    4.1 Wave equation第70-71页
    4.2 Mechanism of spray noise第71-72页
    4.3 Characteristics of spray noise第72-74页
Chapter 5 Flow field analysis of spray noise第74-106页
    5.1 Introduction第74-75页
    5.2 3D Geometric modeling and parameters第75-77页
    5.3 Theoretical mechanism of acoustic radiation in flow field第77-84页
        5.3.1 Turbulence theory第77-78页
        5.3.2 Motion equation and quasi similarity condition第78-79页
        5.3.3 Turbulence mechanism第79页
        5.3.4 Acoustic analogies第79-81页
        5.3.5 Lighthill's Acoustic Analogy第81-83页
        5.3.6 Ffowcs Williams& Hawking's extended analogy using permeablecontrol surface第83-84页
    5.4 Turbulence model of jet flow field第84-95页
        5.4.1 modeling of jet flow field第84页
        5.4.2 Mesh generation第84-86页
        5.4.3 Broadband Noise Models第86页
        5.4.4 Broadband noise prediction based on LES第86-95页
    5.5 The Interaction between a Background Flow and an Acoustics Field第95-97页
    5.6 Environmental noise control第97-102页
        5.6.1 Introduction第97-100页
        5.6.2 Sound pressure and Sound power– Effect and Cause第100-101页
        5.6.3 Relationship between Sound Pressure and Sound Power Levels第101-102页
    5.7 converting sound power level to sound pressure level第102-105页
    5.8 Results第105-106页
Chapter 6 Summary and Prospect第106-108页
    6.1 A summary of the full text第106-107页
    6.2 Work prospect第107-108页
Bibliography第108-111页
Publication of papers and participation in scientific research第111-112页
Acknowledgement第112页

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