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随着计算机、计算机辅助制造等技术的发展,数值模拟逐渐成为航空发动机设计手段之一。航空发动机燃烧室内是复杂的两相湍流燃烧过程,为了准确模拟这一过程,高精度两相湍流燃烧模型组成为航空发动机燃烧室设计师必要的工具。本文从两相湍流数值模拟角度出发,对概率密度函数输运方程模型、火焰面模型和二阶矩模型这3种常用的燃烧模型的发展现状进行简要综述。
With the development of computer, computer aided manufacturing and other technologies, numerical simulation has gradually become one of the aeroengine design tools. Aero-engine combustion chamber is a complex two-phase turbulent combustion process. To accurately simulate this process, the high-precision two-phase turbulence combustion model is a necessary tool for aero-engine combustion chamber designers. Based on the numerical simulation of two-phase turbulence, this paper briefly reviews the development of three commonly used combustion models of the probability density function transport equation model, the flame surface model and the second moment model.