Numerical analysis of turbulence structures induced by bubble buoyancy

被引：5

作者：

Murai, Y ^{[1
]}

Matsumoto, Y

Song, XQ

Yamamoto, F

机构：

[1] Fukui Univ, Dept Mech Engn, Fukui 9108507, Japan

[2] Univ Tokyo, Dept Mech Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING | 2000年 / 43卷 / 02期

关键词：

bubbly flow; multiphase flow; finite differential method; computational fluid dynamics; turbulent flow; natural convection;

D O I：

10.1299/jsmeb.43.180

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The turbulence structure in a rising bubbly flow driven by bubble buoyancy has been analyzed using the Eulerian-Lagrangian model. ii new method of calculating the two-way interaction between the dispersed bubbles and the liquid phase was proposed to accurately simulate the local fluctuations of liquid flow induced by bubble migration. The present two-dimensional simulation revealed that, (1) in the case of the larger bubble, the turbulence structure has the longer wavelength in the vertical direction, and, (2) the wave spectrum of kinetic energy of the liquid phase is sensitive to the average void fraction and the lift force of the bubbles.

引用

页码：180 / 187

页数：8

共 14 条

[1] THE LIFT FORCE ON A SPHERICAL BODY IN A ROTATIONAL FLOW [J].