AIR-WATER GAS TRANSFER AT HYDRAULIC JUMP WITH PARTIALLY DEVELOPED INFLOW

被引：23

作者：

CHANSON, H

机构：

[1] Department of Civil Engineering, The University of Queensland, Brisbane

来源：

WATER RESEARCH | 1995年 / 29卷 / 10期

基金：

澳大利亚研究理事会;

关键词：

AIR-WATER GAS TRANSFER; AIR ENTRAINMENT; HYDRAULIC JUMP; PARTIALLY DEVELOPED INFLOW;

D O I：

10.1016/0043-1354(95)00056-Q

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In open channels, the transition from a rapid to fluvial flow is called a hydraulic jump. It is characterized by large scale turbulence, air bubble entrainment and energy dissipation. The author has investigated the air bubble entrainment at hydraulic jumps with partially developed inflow conditions. The air-water flow is characterized by a turbulent shear region with a large air content which contributes to the enhancement of the air-water interface area and air-water gas transfer in the hydraulic jump. A new gas transfer model is presented. Based upon physical evidence, the model enables prediction of the dissolved gas contents and water quality downstream of hydraulic jumps with partially developed inflows.

引用

页码：2247 / 2254

页数：8