固液两相流中的K-ε双方程湍流模式<sup>*</sup>

固液两相流中的K-ε双方程湍流模式^*

基金项目: * 国家教委博士点基金

摘要: 建立了固液两相流中更一般的K-ε双方程湍流模式。模化了固相和液相的连续方程、动量方程及K方程和ε方程。该湍流模型考虑了固液两相间速度的滑移,颗粒间的作用及相间作用。使用本文所建立的湍流模型,数值预测了一管湍流中的沙水混合流动,其预测结果与实验结果比较一致。
- 固液两相流 /
- K-ε双方程 /
- 湍流模式
Abstract: A two-equation turbulence model has been dereloped for predicting two-phase flow the two equations describe the conserration of turbulence kinetic energy and dissipation rate of that energy for the incompressible carrier fluid in a two-phase flow The continuity, the momentum, K and ε equations are modeled. In this model,the solid-liquid slip veloeites, the particle-particte interactions and the interactions between two phases are considered,The sandy water pipe turbulent flows are sueeessfuly predicted by this turbulince model.
- solid-liqtlid two-phase /
- K-ε two-equation /
- turbulence model

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