河道扩散器排放下游流速和浓度分布的预报

应用作者所取的河道扩散器排放的流场的数值模拟计算成果和水槽试验资料的基础，分析了流动水体中多孔射流排放下游流场的主要影响参数。根据射流与环境水体的掺混稀释特性，采用虚拟扰动源的处理方法，给出了描述河道扩散器排放下游流速的浓度分布的公式。该公式的计算结果与数值模拟及实测值吻合良好。

Prediction of Velocity and Concentration of River Multiport Diffuser Discharges

he mathematical model.calculational method and laboratory exporiments are used to pre-dict the velocity and concentration of river multiport diffuser discharges.By means of inte-gral conservative equations,form ulas are presented for calculating the velocity,concentra-tion,diffusion width of mulitiport jet and local entrainment coefficient for the near field of the diffuser based on the experimental date in flume, The ealculated results of the distribu-tion of velocity and concentrat ion are in good agreement with measurements.