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Research on Thermo-Ablation of Thermal Protection Material of Ramjet Combustion Chamber

Abstract第3页
Table of contents第4-7页
1.Introduction第7-15页
    1.1 Background第7页
    1.2.Literature review of related works第7-13页
        1.2.1 Experiment research第8-9页
        1.2.2 Theoretical model research第9-13页
    1.3 Main works in this paper第13-15页
2 Thermo-ablation models and chemical reaction flow field models第15-25页
    2.1 Thermal protection systems第15页
    2.2 Thermo-ablation models第15-18页
        2.2.1 Ablation mechanism of EPDM thermal protection material第15-16页
        2.2.2 Ablation physical models第16-17页
        2.2.3 Ablation mathematical models第17-18页
    2.3 Chemical reaction flow field models第18-22页
        2.3.1 Turbulence flow and governing equation第18-20页
        2.3.2 Boundary conditions第20-21页
        2.3.3 Initial conditions第21-22页
    2.4 Film coefficient第22-23页
        2.4.1 Eddy-dissipation heat transfer第22-23页
        2.4.2 Forced-convection heat transfer第23页
    2.5 Chapter conclusion第23-25页
3.Numerical simulation on chemical reaction flow field of ramjet chamber第25-39页
    3.1 Physical model of ramjet combustion chamber第25-26页
    3.2 Simulation model and boundary conditions第26-27页
        3.2.1 Simulation model第26-27页
        3.2.2 Initial and boundary conditions第27页
    3.3 Results of numerical simulation on chemical reaction flow field第27-37页
        3.3.1 α=30 degree,and f=7.3,10 and 12第27-31页
        3.3.2 α=45 degree,and f=7.3,10 and 12第31-34页
        3.3.3 α=60 degree,and f=7.3,10 and 12第34-37页
    3.4 Chapter conclusions第37-39页
4.Simulations on thermo-ablation of the thermal protection material第39-59页
    4.1 Introduction of ANSYS第39-41页
        4.1.1 Preprocessor第39页
        4.1.2 Solution processor第39页
        4.1.3 Postprocessor第39页
        4.1.4 Phase change第39-41页
    4.2 Virgin materials thermo-gravimetric analysis,TGA第41-42页
    4.3 Ablation model and computational mesh of thermal protection material第42-43页
    4.4 Numerical simulation of heat transfer and ablation第43-58页
        4.4.1 The angle of gas flow α=30 degree and mass flow rate ratio f=7.3,10 and 12第43-48页
        4.4.2 The angle of gas flow α=45 degree and mass flow rate ratio f=7.3,10 and 12第48-53页
        4.4.3 The angle of gas flow α=60 degree and mass flow rate ratio f=7.3,10 and 12第53-58页
    4.5 Chapter conclusions第58-59页
5 Experiment investigations on thermo-ablation of thermal protection material第59-73页
    5.1 The surface regression rate to the heat transfer第59-61页
        5.1.1 Ablation第59-60页
        5.1.2 Description of material and environment第60页
        5.1.3 Decomposition第60-61页
    5.2 Thermo-ablation experiment on thermal protection material第61-71页
        5.2.1 Description of test system第61-63页
        5.2.2 Results of test under oxygen-poor conditions第63-68页
        5.2.3 Results of test under oxygen-rich conditions第68-71页
    5.3 Compare with experiment results and calculation results第71页
    5.4 Experiment conclusions第71-73页
6 Conclusions and recommendations第73-75页
    6.1 Conclusions第73-74页
    6.2 Recommendation第74-75页
Acknowledgements第75-76页
References第76-78页

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