不同湍流模型在旋流器数值模拟中的应用

水力旋流器内的流场非常复杂,而旋流器结构及操作上的相对简单又在一定程度上使人们忽视了其流场特性及分离机理研究的复杂性。为了在数值模拟时能够恰当地选择湍流模型,总结了国内外学者在利用CFD进行数值模拟时,采用标准κ-ε模型、RNGκ-ε模型、代数应力模型和雷诺应力模型以及离散相模型对水力旋流器流场的数值预报结果,并且简要分析了各湍流模型的特点,对今后需要深入开展的工作做了阐述。

Application of different turbulence model in hydrocyclone numerical simulation

The flow field within the hydrocyclone is very plentiful and the structure and relative simple operation of hydrocyclone make people neglect the complexity of flow field property and separator study to some extent. In order to appropriately choose turbulent model in numerical simulation, the numerical prediction results of hydrocyclone flow field are summarized by using κ-ε model, RNG κ-ε model, algebra stress model, Reno stress model and discrete phase model in numerical simulation with CFD. And the features of every turbulent model are simply analyzed. The work needed to be further done is expatiated.