THE INFLUENCE OF GRAVITY ON THE STABILITY OF BOILING FLOWS

被引：26

作者：

DELMASTRO, DF

CLAUSSE, A

CONVERTI, J

机构：

[1] Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, 8400 S.C. de Bariloche, Rio Negro

来源：

NUCLEAR ENGINEERING AND DESIGN | 1991年 / 127卷 / 01期

关键词：

D O I：

10.1016/0029-5493(91)90045-J

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The effect of gravity on the stability of a single boiling channel is studied. Experiments were performed in a natural circulation loop with a single boiling channel. A region of instability at low powers was identified. The flow evolves in a series of irregular oscillations developing a superposition of two different frequencies. The stability of the system is analyzed using a homogeneous model in the frequency domain. Such an analysis predicts a destabilizing effect of the gravity term of the momentum equation, which is characterized by the Froude number.

引用

页码：129 / 139

页数：11