多孔扩散器在宽浅江河中排放特性研究

Study on discharging characteristic of the multiport diffuser

本文以水槽试验资料为基础，分析了扩散器排放近区流场和浓度场的主要影响参数．根据近区掺混稀释特性，采用虚拟扰动源的处理方法，给出描述扩散器排放下游流速和浓度的分布公式．该分布公式的计算结果与数值模拟、实测资料均有较好地吻合．

In this paper the major parameters affecting the flow characteristics and pollution concentration distributions in the near flied of the discharge from a multiport diffuser into shallow river have been analyzed.According to the diffusion dilute characteristics of the near flow field, the virtual disturbance source method hasbeen adopted to deduce the flow velocity and concentration distribution expressions downstream of the diffuser. The validity of the expressions is witnessed by the experimental data.