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	考虑颗粒间碰撞的稠密气/固流动二阶矩两相湍流模型
	于勇 ; 蔡飞鹏 ; 周力行 ; 时铭显 ; YU Yong ; CAI Feipeng ; ZHOU Lixing ; SHI Mingxian
	2010-06-08 ; 2010-06-08
关键词	二阶矩 稠密两相流 两相湍流模型 second-order moment dense gas-particle flows two-phase turbulence model O359
其他题名	Second-order moment two-phase turbulence model for dense gas-particle flows
中文摘要	将统一二阶矩两相湍流模型和颗粒动力学理论结合, 推导并封闭了稠密两相流考虑颗粒间碰撞的统一二阶矩两相湍流模型. 该模型用颗粒动力学理论模拟颗粒之间的碰撞, 用各向异性的统一二阶矩模型考虑气相和颗粒相的湍流脉动, 并用输运方程描述气固两相湍流之间的相互作用. 最后用该模型对狭窄槽道内的气粒两相流动进行了模拟, 模拟所得的颗粒水平方向和垂直方向的雷诺应力和实验结果吻合良好. 结果表明, 考虑颗粒间碰撞之后, 颗粒水平方向雷诺应力的预报得到了明显改进.; A second-order moment two-phase turbulence model for dense gas-particle flows (USM-Θ model), combining the unified second-order moment two-phase turbulence model with the kinetic theory of particle collision, was proposed. The interaction between gas and particle turbulence was described by using the transport equation of two-phase velocity correlation.The proposed model was used to simulate gas-particle flows in a horizontal narrow channel.Simulation results and their comparison with the experimental results showed that the predictions accounting for both particle turbulence and particle-particle collision were obviously better than those accounting for only particle turbulence or only particle-particle collision.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/50868]
专题	清华大学
推荐引用方式 GB/T 7714	于勇,蔡飞鹏,周力行,等. 考虑颗粒间碰撞的稠密气/固流动二阶矩两相湍流模型[J],2010, 2010.
APA	于勇.,蔡飞鹏.,周力行.,时铭显.,YU Yong.,...&SHI Mingxian.(2010).考虑颗粒间碰撞的稠密气/固流动二阶矩两相湍流模型..
MLA	于勇,et al."考虑颗粒间碰撞的稠密气/固流动二阶矩两相湍流模型".(2010).

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