OSCILLATORY NATURAL-CONVECTION OF A LIQUID-METAL IN CIRCULAR-CYLINDERS

被引：16

作者：

KAMOTANI, Y ^{[1
]}

WENG, FB ^{[1
]}

OSTRACH, S ^{[1
]}

PLATT, J ^{[1
]}

机构：

[1] NASA,LEWIS RES CTR,CLEVELAND,OH 44135

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1994年 / 116卷 / 03期

关键词：

LIQUID METALS; NATURAL CONVECTION; TRANSIENT AND UNSTEADY HEAT TRANSFER;

D O I：

10.1115/1.2910915

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental study is made of natural convection oscillations in gallium melts enclosed by right circular cylinders with differentially heated end walls. Cases heated from below are examined for angles of inclination (phi) ranging from 0 deg (vertical) to 75 deg with aspect ratios Ar (height/diameter) of 2, 3, and 4. Temperature measurements are made along the circumference of the cylinder to detect the oscillations, from which the oscillatory flow structures are inferred. The critical Rayleigh numbers and oscillation frequencies are determined. For Ar = 3 and phi = 0 deg, 30 deg the supercritical flow structures are discussed in detail.

引用

页码：627 / 632

页数：6

共 13 条

[1]

CARLSON GS, 1971, INT J HEAT MASS TRAN, V14, P2157

[2]

DELARCO EC, 1989, PHYS FLUIDS A-FLUID, V1, P1348, DOI 10.1063/1.857310

[3]

DELARCO EC, 1988, ADV SPACE RES, V8, P281

[4]

DELARCO EC, 1989, ASME HTD, V99, P67