THE FLOW FIELD IN AIR-WATER VERTICAL BUBBLING JETS IN A CYLINDRICAL VESSEL

被引：15

作者：

IGUCHI, M ^{[1
]}

TAKEUCHI, H ^{[1
]}

MORITA, Z ^{[1
]}

机构：

[1] SHARP CO LTD,OSAKA,JAPAN

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1990年 / 76卷 / 05期

关键词：

Flow of Water--Bubble Formation - Liquid Metals--Fluidity Testing - Mathematical Techniques--Error Analysis - Steelmaking--Research - Velocimeters--Laser Doppler;

D O I：

10.2355/tetsutohagane1955.76.5_699

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Bubble frequency and gas holdup in bubbling jets were measured by means of an electro-resistivity probe. The axial, radial and tangential velocity and fluctuation components of water were measured with a Laser Doppler Velocimeter. On the basis of these results, air-water vertical bubbling jet in a cylindrical vessel was classified into four regions, i.e., the momentum, transition, buoyancy, and surface regions from the nozzle exit toward the bath surface. The profiles of gas holdup, axial velocity and root mean square value of axial velocity fluctuation in each region were discussed in detail. Also, the flow rate, momentum and kinetic energy of rising water were determined, being necessary for refining previous theoretical models predicting the fluid flow behavior induced by bubbles.

引用

页码：699 / 706

页数：8

共 9 条

[1] MEASUREMENT OF PHYSICAL CHARACTERISTICS OF BUBBLES IN GAS-LIQUID PLUMES .2. LOCAL PROPERTIES OF TURBULENT AIR-WATER PLUMES IN VERTICALLY INJECTED JETS [J].