Near-field mixing at an outfall

被引：5

作者：

Gawad, STA ^{[1
]}

McCorquodale, JA ^{[1
]}

Gerges, H ^{[1
]}

机构：

[1] UNIV WINDSOR,DEPT CIVIL ENGN,WINDSOR,ON N9B 3P4,CANADA

来源：

CANADIAN JOURNAL OF CIVIL ENGINEERING | 1996年 / 23卷 / 01期

关键词：

mixing; near field; pollutant transport; outfall; buoyant flow; non-buoyant flows;

D O I：

10.1139/l96-007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The near-field mixing of effluent from buoyant and nonbuoyant flows from outfalls discharging into a cross-flowing ambient current in trapezoidal channels has been investigated. A physical model was scaled to represent a typical large outfall into one of the connecting channels of the Great Lakes system. The discharged jet was measured in detail to determine the velocity and concentration fields. The excess velocities and concentrations were found to follow the Gaussian distribution. Empirical expressions for the jet trajectories, minimum dilutions, and plume widths were derived. A correction factor has been introduced to the concentration distribution to ensure mass conservation. The calibrated model was verified by comparison with field data and the results of other near-field models (PDS, MIT, and CORMIX).

引用

页码：63 / 75

页数：13