水平管路中多相弹状流压力降计算  

Pressure Loss Calculation of Multiphase Slug Flow in Horizontal Pipeline

作　　者：苏新军[1] 张修刚[1] 王栋[1] 林宗虎[1] 

机构地区：[1]西安交通大学能源与动力工程学院锅炉教研室

出　　处：《油气储运》2004年第10期8-12,共5页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金项目 (5 9995 460 )。

摘　　要：应用气液两相流动中双流体模型下的连续方程和动量守衡方程 ,以及通过试验获得的液弹速度方程 ,对水平管中油气水三相弹状流的压降进行了分析和计算 ,建立了在一维坐标系下的压降计算模型。模型综合考虑了由于流体和壁面之间剪切应力引起的摩擦压降、液弹前锋处水跃造成的粘性压降和气体膨胀引起的加速压降对总压降的影响。计算结果和试验结果的对照表明 ,在低压的情况下 ,模型计算结果和试验结果吻合较好。对水平管中压降计算结果表明 ,摩擦压降是整个压降的最重要组成部分 ,占总压降的 92 %～ 95 % ,加速压降占总压降的 3%～ 5 % ,水跃造成的粘性压降在总的压降中只占总压降损失的 1%～ 2 %。The two-fluid model is adopted to build one dimensional pressure loss model. The pressure loss is calculated on an air-oil-water multiphase slug flow and the results are compared with the experimental data in horizontal pipeline. In the model presented in the article the pressure loss consists of three terms, including friction pressure loss caused by wall shear stress, viscous loss associated with the eddy motion in the mixing vortex,and the accelerational pressure loss due to gas expansion. The result shows that the model is good agreement with the experimental data. In all cases the largest contribution to the pressure loss is the frictional loss within the slug. However,the additional viscous and accelerational components also exist together, the accelerational term typically accounted for up to 3～5% of the total pressure loss,the viscousloss is up to 2%.

关 键 词：流压 水平管 油气水 多相 摩擦压降 弹状流 气液两相流动 一维 速度方程 动量 

分 类 号：TE832[石油与天然气工程—油气储运工程] O359[理学—流体力学]