Chapter 1 Fundamental Concepts 1.1 Introduction to Gas Turbines 1.2 Primary Geometrical Parameters 1.3 Fundamental Equations of Turbine Aerothermodynamics 1.3.1 Continuity Equation 1.3.2 Energy Equation 1.3.3 Moment of Momentum Equation 1.4 Velocity Triangles of Conventional Axial Turbine Stages 1.5 Boundary Layer on Blade Surface 1.5.1 Boundary Layer Thickness 1.5.2 Boundary Layer Transition 1.5.3 Boundary Layer Separation 1.6 Wakes 1.7 Secondary Flows 1.8 Tip Leakage Flow 1.9 Potential Field 1.10 Shock Waves and Expansion Waves 1.11 Flow Mixing in Turbines 1.12 Blade Loading 1.13 Loss and Efficiency 1.13.1 Loss and Efficiency of Turbine Cascades 1.13.2 Efficiency of Uncooled Turbine 1.13.3 Efficiency of Cooled Turbine References Chapter 2 Flow Mechanism in High Pressure Turbines 2.1 Introduction to High Pressure Turbines 2. 1.1 Structure and Characteristics of High Pressure Turbines 2.1.2 Development Status and Trends of High Pressure Turbines 2. 1.3 Factors on Efficiency of High Pressure Turbines 2. 1.4 Further Development of High Pressure Turbines and New Features of Aerodynamic Research 2.2 Aerodynamic and Geometrical Features of High Pressure Turbines 2.2.1 Aerodynamic Design Features of High Pressure Turbines 2.2.2 Blade Profile Features of High Pressure Turbines 2. 3 Complex Wave System in High-Loaded High-Pressure Turbines 2.3.1 Wave Systems in High Pressure Turbines 2.3.2 Interaction between Shock Waves and Boundary Layer 2.4 Secondary Flow of High Pressure Turbines and Control Techniques 2.4. 1 Secondary Flow in High Pressure Turbines 2.4. 2 Factors of Influencing Secondary Flows in High Pressure Turbines 2.5 Leakage Flows of High Pressure Turbines and Control Techniques 2.5.1 Geometrical and Aerodynamic Parameters on Tip Leakage Flows in High Pressure Turbines 2.5.2 Active Clearance Controls 2.6 Influence of Interaction between Cooling Flow and the Main Flow on Aerodynamic Performance 2.6.1 Influence of Film Cooling on Aerodynamic Performance 2.6. 2 Influence of Endwalls and Sealing Flow on Aerodynamic Performance References Chapter 3 Flow Mechanism in Inter Turbine Ducts 3.1 Geometrical and Aerodynamic Characteristics of Inter-turbine Duct and Development Trends ���� Chapter 4 Flow Mechanisms in Low-Pressure Turbines Chapter 5 Flow Mechanism in Turbine Rear Frame Ducts Chapter 6 Aerodynamic Design Technologies for Turbines Chapter 7 Flow Control Technologies Chapter 8 Multidisciplinary Coupling Analysis and Design Index