【摘要】 建立了惰性多孔介质中预混合燃烧的数学模型,采用辐射传递的有限体积法求解固相能量方程中的辐射源项,研究多孔介质热辐射在燃烧系统中的作用,考察辐射属性(吸收系数和散射反照率)对轴向温度场和辐射热流量影响的敏感性。研究表明,辐射属性参数波动对预测结果影响明显,固体热辐射在多孔介质预混燃烧中的影响不可忽略。更多还原

【Abstract】 A numerical model accounting for premixed combustion in inert porous media has been developed. The finite volume method is applied to solve the radiative source term in the energy equation of solid phase. A sensitivity study was performed to investigate the influence of the radiative properties (absorption coefficient and scattering albedo) on temperature profiles and radiation flux. The results show that that the predictions are greatly affected by the perturbations in the radiative properties and heat radiation of the solid should not be neglected in the modeling of premixed combustion in inert porous media.更多还原