Nomenclature
Chapter 1Introduction
1.1 Hydropower
1.1.1Small hydropower
1.1.2Pumped Storage Hydropower
1.1.3Reversible pump turbine flow stability aspects
1.1.4Reversible pump turbine flow instability-related hydraulic phenomena
1.2Research Objectives
1.3Thesis organization
Chapter 2 Numerical simulation research methodology
2.1 Introduction
2.2Computational fluid dynamics
2.2.1 Pre-processor
2.2.2 Solver
2.2.3 Post-processor
2.3Fluid flow governing equations
2.3.1 Navier-Stokes Equations
2.3.2 Reynolds-averaged Navier-Stokese quations
2.4Fluid flow turbulence modelling
2.4.1The k-ε turbulence model
2.4.2 The k-ω Turbulence model
2.4.3 The shear stress transport(SST) model
2.5 Boundary layer Modelling
2.6The solver
2.6.1 Boundary conditions
2.6 Summary
Chapter 3 Pump as turbine (PAT) flow instability aspects under off-design conditions
3.1 Introduction
3.2 Geometric model and numerical method
3.2.1 Geometric model
3.2.2.Numerical Method
3.3Results and analysis
3.3.1 Volute
3.3.2 Impeller
3.3.3 Outlet pipe
3.4 Summary
Chapter 4 Reversible Pump Turbine flow instability aspects under off-design conditions:A focus on guide vane opening Influence
4.1 Introduction
4.2Research object and Methods
4.2.1 Pump Turbine Model
4.2.2 Numerical Simulation Scheme and Validation
4.3Results and Discussion
4.3.1 Flow field characteristics and evolution
4.3.2 Pressure Pulsation analysis
4.4 Summary
Chapter 5 Reversible pump turbine flow instability aspects under off-design conditions: A focus on runner blade number influence
5.1 Introduction
5.2Research Object and Method
5.2.1 RPT geometric model
5.2.2 Numerical Simulation scheme and Validation
5.3Results and discussion
5.3.1 Runner inter-blade flow field analysis
5.3.2 Runner inlet zones pressure pulsation analysis
5.3.3 Runner upstream zones flow and pressure pulsation analysis
5.4 Summary
Conclusions
Future works
参考文献
Papers published during the Ph.D. education
声明
致谢
Curriculum Vitae
哈尔滨工业大学;
