THE EFFECT OF FLOW DIRECTION ON VOID GROWTH AT LOW VELOCITIES AND LOW-PRESSURE

被引：15

作者：

BIBEAU, EL

SALCUDEAN, M

机构：

[1] Department of Mechanical Engineering The University of British Columbia, Vancouver

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1990年 / 17卷 / 01期

关键词：

D O I：

10.1016/0735-1933(90)90075-U

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Subcooled void fraction experimental data is presented for upward and downward flow in an annulus for a velocity range of 0.07 to 0.46 m/s, and pressure of 155 kPa. The buoyancy effect causes the onset of significant void, OSV, to occur at higher subcooling for downward flow than for upward flow. This effect is significant close to the bubble rise velocity (0.23 m/s) and decreases at higher velocities. Analysis of void growth for both flow directions shows that bubble detachment is not the only critical parameter affecting OSV at low velocities and low pressures. © 1990.

引用

页码：19 / 25

页数：7

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