【摘要】 多孔介质燃烧室的传热性能主要取决于多孔介质材料的热物性,本文在气固两相局部非热平衡假设基础上,建立往复式流动下多孔介质超绝热燃烧的二维数学模型,研究了多孔介质的比热、导热系数、衰减系数和体积换热系数等对温度分布和燃烧速率的影响,以期为多孔介质选材和往复流动下多孔介质超绝热燃烧器的优化设计提供理论依据。更多还原

【Abstract】 The heat transfer properties of a porous media combustor mainly depend on the thermophysical properties of a porous-media material. Based on the hypothesis of local thermal non-equilibrium between the solid and gas phases the authors have set up a two-dimensional mathematical model for porous-media superadiabatic combustion under the condition of reciprocating flows. The influence of the porous-media specific heat, heat conductivity, dissipation factor and volume heat-exchange factor, etc on temperature distribution and combustion rate was studied in order to provide a theoretical basis for the selection of porous-media materials and the optimized design of a reciprocating-flow porous-media superadiabatic combustor.更多还原