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基于均质流理论的非定常空化流动及空蚀数值预测研究

摘要第3-4页
Abstract第4-5页
Nomenclature第9-11页
Chapter 1 Introduction第11-28页
    1.1 Background第11-16页
    1.2 Literature review第16-25页
        1.2.1 Cavitation erosion prediction using CFD第16-24页
        1.2.2 Free software第24-25页
    1.3 Objectives第25页
    1.4 Main contents of the dissertation第25-28页
Chapter 2 Numerical modeling methods used for cavitating turbulent flow simula-tions第28-38页
    2.1 Homogeneous mixture flow assumption第28-29页
    2.2 Cavitation models第29-31页
        2.2.1 Kunz model第29页
        2.2.2 Schnerr-Sauer model第29-30页
        2.2.3 Zwart-Gerber-Belamri model第30-31页
    2.3 Turbulence modeling methods第31-33页
    2.4 OpenFOAM第33-37页
        2.4.1 OpenFOAM set up第33-35页
        2.4.2 Volume-of-Fluid第35-36页
        2.4.3 Grid mesh第36-37页
    2.5 Summary第37-38页
Chapter 3 Numerical analyses for cavitating turbulent flows around hydrofoils第38-62页
    3.1 Partial cavitation over NACA0015 hydrofoil第38-44页
        3.1.1 Hydrofoil geometry第38-39页
        3.1.2 Mesh generation第39-40页
        3.1.3 Computation setup第40页
        3.1.4 Python image processing第40-41页
        3.1.5 Results and discussions第41-44页
    3.2 Unsteady partial cavitation around a plane-convex hydrofoil第44-54页
        3.2.1 Hydrofoil geometry and computational domain第44-45页
        3.2.2 Mesh generation第45页
        3.2.3 Boundary conditions第45-46页
        3.2.4 Results and discussions第46-52页
        3.2.5 Comparison for ILES and ELES第52-54页
    3.3 Unsteady cavitation around a NACA66 hydrofoil using dynamic time step第54-61页
        3.3.1 Variable time step第54-56页
        3.3.2 The total vapor volume第56页
        3.3.3 Hydrofoil geometry, mesh generation and boundary conditions第56-57页
        3.3.4 Results and discussions第57-61页
    3.4 Summary第61-62页
Chapter 4 Cavitation erosion prediction using CFD第62-87页
    4.1 Erosion model第62-68页
        4.1.1 Microjet assumption第62-65页
        4.1.2 Flow aggressiveness and material damage第65-68页
    4.2 Numerical prediction of cavitation-erosion on a NACA66 hydrofoil and aplane-convex hydrofoil with a semi-circular obstacle第68-77页
        4.2.1 Computational domains第69页
        4.2.2 Mesh generation第69-70页
        4.2.3 Boundary conditions第70-71页
        4.2.4 Results and Discussions第71-77页
    4.3 Numerical prediction of cavitation-erosion on axisymmetric nozzle第77-84页
        4.3.1 Computational domain第78-79页
        4.3.2 Mesh generation第79-80页
        4.3.3 Results and discussions第80-84页
    4.4 Numerical prediction of the affected region by unsteady cavitating flow fora NACA0015第84-86页
        4.4.1 Mesh generation and boundary conditions第85页
        4.4.2 Results and discussions第85-86页
    4.5 Summary第86-87页
Chapter 5 Conclusions and future work第87-90页
    5.1 Main concluding remarks第87-88页
    5.2 Innovation points第88页
    5.3 Future work第88-90页
References第90-97页
致谢第97-99页
Appendix A Mesh analysis for NACA0015第99-102页
    A.1 Cavitating Flow Simulation with Mesh Development using Salome OpenSource Software第99-102页
Appendix B Developed software for the study case of NACA0015第102-105页
    B.1 Python processing image algorithm第102-103页
    B.2 Code of the pressure fluctuation plot at x/c = 0.2第103-105页
Appendix C Developed software for the study case of a plane-convex hydrofoil第105-119页
    C.1 Zwart-Gerber-Belamri cavitation model第105-108页
    C.2 Code for plotting Cpand α第108-119页
Appendix D Developed software for the study case of a NACA66 hydrofoil usingvariable time step第119-129页
    D.1 NACA66 hydrofoil第119-124页
    D.2 FFT program第124-129页
Appendix E Cavitation erosion model: mesh and programs第129-150页
    E.1 The mesh of the plane-convex hydrofoil with semicircular obstacle第129-141页
    E.2 Program for the total vapor volume第141-145页
    E.3 Developed software for the implementation of the cavitation-erosion model第145-147页
    E.4 Gnuplot code for residuals第147-150页
Resume and published papers第150-151页

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