Strong interactions between free-surface aeration and turbulence in an open channel flow

被引：44

作者：

Chanson, H ^{[1
]}

Toombes, L ^{[1
]}

机构：

[1] Univ Queensland, Dept Civil Engn, Brisbane, Qld 4072, Australia

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2003年 / 27卷 / 05期

关键词：

free-surface aeration; turbulence; experiments; interfacial properties; open channel flow; staircase chute;

D O I：

10.1016/S0894-1777(02)00266-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High-velocity free-surface flows may be characterised by strong free-surface aeration. In turn the entrained air bubbles are expected to interact with the flow, turbulence. An experimental study was conducted in supercritical open channel flows down a cascade. Measurements included time-averaged air-water flow properties, air and water chord sizes, and interfacial areas. High levels of turbulence were associated consistently with large air-water interfacial areas, Altogether the study contributes to a better understanding of the basic interfacial processes in re-aeration cascades. (C) 2003 Elsevier Science Inc. All rights reserved.

引用

页码：525 / 535

页数：11

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