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摘要
Dense gas-particle flows are frequently encountered in fluidized beds, riser and downer reactors, pneumatic transport and the near-wall zone of dilute gas-particle flows. Particle-particle collision plays an important role in the behavior of two-phase flows. In this paper a USM-Q two-phase turbulence model for dense gas-particle flows is proposed to account for both two-phase turbulence and inter-particle collision. For two-fluid large-eddy simulation of gas-particle flows, the author proposed a unified second-order moment (USM) two-phase SGS stress model and a two-phase k-k (p) SGS energy-equation stress model. The proposed models can fully account for the interaction between the gas and particle SGS stresses.
- 出版日期2011-7
- 单位清华大学
