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Research on Investigation of Pressure Force Effect on a Wind Turbine Performance Using BEM

摘要第5-6页
Abstract第6-7页
Chapter1 Introduction第10-15页
    1.1 Background第10页
    1.2 Previous Work第10-14页
    1.3 Scope第14-15页
Chapter 2 Fundamental Theories Concerning Wind Turbine Aerodynamics第15-37页
    2.1 Momentum Theory第15-25页
        2.1.1 Froude's Momentum Theory for an Actuator Disc第15-23页
            2.1.1.1 Axial Consideration第15-20页
            2.1.1.2 Rotational Considerations第20-22页
            2.1.1.3 Tip Speed Ratio第22-23页
        2.1.2 Tip Speed Ratio and Its Relation with Efficiency第23-25页
    2.2 Blade Element Theory第25-29页
        2.2.1 Glauert's Blade Element Momentum Theory第25-29页
    2.3 Blade Element Momentum Theory (BEM)第29-37页
        2.3.1 Prandtl Tip Loss Factor第32-33页
        2.3.2 Improvement of Induction Factors第33-37页
            2.3.2.1 The axial induction factor第33页
            2.3.2.2 The tangential induction factor第33-37页
Chapter 3 Theoretical background regarding the Stall concept第37-53页
    3.1 Reynolds number第37页
    3.2 Definition of Boundary Layer第37-38页
    3.3 Relationship between Stall Phenomenon and Detachment of the Boundary Layer第38-42页
        3.3.1 Boundary Layer Pressure Distribution第39页
        3.3.2 Prediction of the Separation Process第39-41页
        3.3.3 Penalty of Separation第41-42页
    3.4 Stall Delay第42-45页
        3.4.1 Observation in Experimental Results第42-43页
        3.4.2 Prime Cause Responsible for Stall Delay第43-45页
    3.5 Corrigan and Schillings Stall Delay Model第45-53页
        3.5.1 Empirical stall delay Model第46-48页
        3.5.2 Application to Stall Regulated Turbines第48页
        3.5.3 CER rotor model第48-50页
        3.5.4 Static Airfoil Characteristics第50-53页
Chapter 4 Code Validation第53-63页
    4.1 Performance Predictions used for code validation第53-63页
        4.1.1 Baseline Blade Geometry第53-55页
        4.1.2 Reference Baseline Blade Performance Predictions第55-57页
        4.1.3 Comparison between NREL Publication Result and Code Developed第57-63页
Chapter 5 Pressure Force Influence on Blade Element Momentum Theory第63-71页
    5.1 Modification on the Classical BEM Theory第63-71页
        5.1.1 The Consequence of Mass Conservation第63-65页
        5.1.2 Modification to Classical Axial Momentum Balance第65-68页
        5.1.3 Rotational Considerations第68-71页
Chapter 6 Results and Discussion第71-101页
    6.1 Performance Predictions for NREL CER blade model第71-78页
        6.1.1 Predicted Rotor Power第71-72页
        6.1.2 Predicted Turbine Blade Thrust第72-74页
        6.1.3 Axial Induction Factor第74-77页
        6.1.4 Lift coefficients第77-78页
    6.2 Comparison between NREL CER and BEM Modified Model Prediction Results第78-79页
    6.3 Comparison between NREL CER and BEM Modified Model Rotor Power Prediction Results第79-85页
    6.4 Performance Predictions for Variable Blade Geometry Parameters第85-101页
CONCLUSION第101-105页
REFERENCES第105-109页
ACKNOWLEDGEMENTS第109页

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