横流中单矩形孔热水浮射流的K—ε模型

The K-ε model of turbulent for thermal water buoyant jet from single rectangular port in crosswise flow

为探讨横流动水中的单矩形孔口热水浮射液的流速场和温度场，采用K－ε紊流模式来封闭模型，运用壁面函数处理近壁面的流动，并采用非均分布格和混合离散格式，通过选取适当的紊流参数和壁面参数，在一定的流速比的条件下，有效的模拟了其流速场和温度场，与理论分析结果一致，具有很好的精度和实用参考价值。

The K ε turbulent model is applied in this paper to close from equations in order to acquire of the velocity and temperature distribution of thermal water jet from single rectangular port in crosswise flow, in which wall function is used to deal with flowing near the wall. Under an arbitrary velocity ratio the velocity and temperature distribution are modeled efficiently by the way of un uniform grids and hybrid discrete method. The results show good agreement with theoretical analysis and have good precision practical and real reference value.