Bubbly Two-Phase Flow in Hydraulic Jumps at Large Froude Numbers

被引：23

作者：

Chanson, Hubert ^{[1
]}

机构：

[1] Univ Queensland, Brisbane, Qld 4072, Australia

来源：

JOURNAL OF HYDRAULIC ENGINEERING | 2011年 / 137卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

Hydraulic jumps; Bubbly two-phase flow; Froude numbers; Physical modeling; AIR ENTRAINMENT; WATER;

D O I：

10.1061/(ASCE)HY.1943-7900.0000323

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A hydraulic jump is a sudden, rapid transition from a supercritical flow to a subcritical flow. At large inflow Froude numbers, the jump is characterized by a significant amount of entrained air. For this paper, the bubbly two-phase flow properties of steady and strong hydraulic jumps were investigated experimentally. The results demonstrate that the strong air entrainment rate and the depth-averaged void-fraction data highlight a rapid deaeration of the jump roller. The results suggest that the hydraulic jumps are effective aerators and that the rate of detrainment is comparatively smaller at the largest Froude numbers. DOI: 10.1061/(ASCE)HY.1943-7900.0000323. (C) 2011 American Society of Civil Engineers.

引用

页码：451 / 460

页数：10

共 28 条

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BABB AF, 1981, J HYDR ENG DIV-ASCE, V107, P1615

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