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URANS to Predict Ship Roll Damping Using Forced Roll and Free Decay Oscillations

摘要第5-6页
ABSTRACT第6页
CHAPTER 1 INTRODUCTION第9-15页
    1.1 Ship Motions第9-10页
        1.1.1 Ship Roll Motion第9-10页
        1.1.2 Roll Damping第10页
    1.2 Brief Background第10-11页
    1.3 Motivation第11-13页
    1.4 Objectives and Scope第13-14页
    1.5 Overview第14-15页
CHAPTER 2 SHIP ROLL DAMPING PREDICTIONS – A REVIEW第15-37页
    2.1 Introduction第15页
    2.2 Governing Equations第15页
    2.3 Froude’s and Kriloff’s Contributions第15-16页
    2.4 Early Experimental Methods and Roll Response Findings第16-19页
    2.5 Potential Flow Methods and The Strip Theory for Roll Damping第19-28页
    2.6 Ikeda’s Method and Empirical Rectifications第28-34页
        2.6.1 Prologue第28-29页
        2.6.2 Frictional Component, BF第29-30页
        2.6.3 Eddy-making Component, BE第30-32页
        2.6.4 Wave-making Component, BW第32页
        2.6.5 Bilge-keel Component, BBK第32-33页
        2.6.6 Lift Component, BL第33页
        2.6.7 Final Remarks第33-34页
    2.7 Panel Methods第34-35页
    2.8 Embedded Vortex Approach第35页
    2.9 Free Surface Random Vortex Method第35-36页
    2.10 2.5D Seakeeping Methods第36页
    2.11 RANS Methods第36-37页
CHAPTER 3 SHIP ROLL - UNSTEADY RANS第37-45页
    3.1 Preamble第37页
    3.2 The Navier-Stokes and The Continuity Equations第37-38页
    3.3 Unsteady RANS Equations第38-39页
    3.4 Turbulence第39-43页
        3.4.1 Introduction第39-40页
        3.4.2 Turbulence Models in FLUENT第40-43页
    3.5 Multiphase Modelling第43-45页
        3.5.1 The VOF Model第44-45页
CHAPTER 4 FORCED ROLL ANALYSIS AND DAMPING CALCULATIONS第45-65页
    4.1 Introduction第45页
    4.2 S175 Container Ship Specifications第45-46页
    4.3 CFD Analysis第46-54页
        4.3.1 3D Surface Model Generation第46-47页
        4.3.2 Three-Dimensional Mesh Generation第47-49页
        4.3.3 Boundary-Conditions第49页
        4.3.4 Solution using CFD Code FLUENT第49-54页
    4.4 Post-processing the Results第54-61页
    4.5 Numerical Verification第61-62页
    4.6 Damping Calculations and Results Validation and Discussion第62-65页
CHAPTER 5 FREE DECAY ROLL ANALYSIS AND DAMPING CALCULATIONS第65-78页
    5.1 Introduction第65页
    5.2 Ship Roll Free-Decay第65页
    5.3 Similarities between Forced roll and Free-Decay Simulations第65-66页
    5.4 Boundary-Conditions第66页
    5.5 Solution using CFD Code FLUENT第66-69页
        5.5.1 Pressure-Velocity Coupling第66页
        5.5.2 Discretization Schemes第66-69页
    5.6 Post-processing the Results第69-77页
        5.6.1 Effect of Change in Initial Roll Amplitude第69页
        5.6.2 Effect of Change in Radius of Gyration第69页
        5.6.3 Effect of Change in Metacentric Height第69-70页
        5.6.4 Comparison with Experiment第70-77页
    5.7 Results Discussion第77-78页
CHAPTER 6 CONCLUSIONS AND FUTURE PROPOSALS第78-80页
    6.1 Conclusions第78-79页
    6.2 Future Proposals第79-80页
REFERENCES第80-86页
ACKNOWLEDGEMENTS第86页

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