典型文献
Effects of the mixing degree upstream of the diverging area on the pollutant allocation characteristics of a braided river
文献摘要：
The mixing degree upstream of the diverging area is one of the important factors influencing the pollutant allocation characteristics of braided rivers, but the effect remains unclear at present. In this paper, physical model tests were designed to study the effect on the pollutant flux ratio with six branching forms and a series of longitudinal discharge distances. The results indicated that the mixing degree upstream of the diverging area, which is closely related to the longitudinal discharge distance, notably affected the pollutant flux ratio. The lower the mixing degree, the larger was the deviation of the pollutant flux ratio from the discharge ratio. Moreover, a linear relationship was attained between the dimensionless mixing degree and the dimensionless deviation of the pollutant flux ratio from the discharge ratio. Consideration of different branching angles or different water layers or different branches did not affect this trend. The experimental results further demonstrated that the intercept and slope of the aforementioned linear relationship depended on the branching angle and exhibited an opposite monotonicity with a symmetric branch angle as the dividing point. These results help towards a better understanding of the mechanism of the factors influencing pollutant transport in complicated braided rivers, and provide a new approach to predicting the pollutant flux ratio of braided rivers.
文献关键词：
中图分类号：
作者姓名：
Jun ZOU;Jian-min ZHANG;Chang-yuan LI
作者机构：
College of Water Resource&Hydropower,Sichuan University,Chengdu 610065,China;Jiangxi Provincial Institute of Water Sciences,Nanchang 330029,China
文献出处：
引用格式：
[1]Jun ZOU;Jian-min ZHANG;Chang-yuan LI-.Effects of the mixing degree upstream of the diverging area on the pollutant allocation characteristics of a braided river)[J].浙江大学学报（英文版）（A辑：应用物理和工程）,2022(09):733-744
A类：
B类：
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AB值：
0.459784
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