摘要
为精确确定水平细圆管内气液两相分相流动的界面结构，提出采用基于相平衡理论的最小能量原理分析，研究重力、界面剪切力和表面张力对气液两相流流型的影响；分析小尺度下水平圆管气液两相流动的特点。发现即使在细圆管内，相界面间的剪切力对气液两相流流型的影响依然比表面张力显著得多。利用最小能量原理提出了可预示两相系统气液界面形状的方法。
Based on the phase equilibrium theory, the minimum energy principle is employed to analysis the two phases flow system in horizontal tube. The effects of the gravity, shear stress and surface tension between the phases on the flow pattern of the gasliquid flow systems are explored. Especially under small diameter, the characteristic interface configuration of gasliquid flow in horizontal tube is studied. The results indicate that even in the thin tube, the shear stress has more obvesious effect on flow pattern than the surface tension. Also the paper puts forward the approach to predict the interface curvature of twophase flow system by means of energy considerations.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1998年第7期1-3,共3页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金
关键词
两相流动
能量分析
流型
界面形状
twophase flow
energy consideration
flow pattern
