关键词: 概率密度函数, Monte Carlo, 有限容积法, 无结构网格, 火焰面模型

Abstract: A consistent hybrid FV/MC algorithm developed on triangular unstructured meshes is implemented to simulate turbulent diffusion flame stabilized on bluff body. Monte Carlo method is used to solve joint fluctuating velocity-frequency-composition PDF equation, while Reynolds averaged mass, momentum and energy equations are solved by finite volume method. The coupling between the two methods reduces the statistical and bias error of stand-alone particle method, so accuracy and efficiency are improved greatly. Laminar flamelet model is incorporated. The simulation results are compared with the experimental data.

Key words: PDF method, Monte Carlo, finite volume, unstructured meshes, bluff body stabilized flame