垂直上升管内气-液两相环状流截面含气率的数学模型  

A MATHEMATICAL MODEL OF VOID FRACTION OF GAS-LIQUID TWO-PHASE ANNULAR FLOW IN VERTICAL TUBES

作　　者：周云龙[1] 孙斌[1] 洪文鹏[1] 刘巍[1] 杨静[1] 张玲[1] 

机构地区：[1]东北电力学院,吉林吉林132012

出　　处：《工程热物理学报》2005年第4期625-627,共3页Journal of Engineering Thermophysics

摘　　要：模型是建立在压力能量消耗率最小的原理上的,其基本原理是:在气-液两相流的流型中,环状流具有相当稳定的流动状态。根据流体力学的原理,任何系统都趋向于处在能量最小的稳定状态,所以在环状流的稳定流动状态下具有的能量应该最小。提出了计算截面含气率的压力能量消耗率模型,结果表明:模型计算结果与实验结果基本相吻合。The model is established the theorem of pressure energy consumption minimum. Its basic principle is that there is a quite steady flow state of annular flow in the flow pattern of gas-liquid two-phase flow. According to the principle of the fluid mechanics, any system all tend towards to minimum steady state of energy, so the energy in steady flow of annular flow will be minimum. The mathematical model of pressure energy consume for calculated void fraction are proposed. Results show that calculated results agree well with the experimental data.

关 键 词：气-液两相流 含气率 理论模型 上升管 

分 类 号：O359.1[理学—流体力学]