泡沫流体管流流动与换热数值模拟  

Flow and heat transfer numerical simulation of foam fluid in pipes

作　　者：林日亿[1] 李兆敏[2] 李松岩[2] 余文彬[3] 高志华[4] 

机构地区：[1]中国石油大学储运与建筑工程学院,山东东营257061 [2]中国石油大学石油工程学院,山东东营257061 [3]新疆油田公司准东采油厂,新疆阜康831511 [4]长庆油田公司,陕西榆林719000

出　　处：《中国石油大学学报（自然科学版）》2009年第6期91-94,99,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(50876115);国家科技重大专项课题(2008ZX05024-04-008);博士科研基金项目(Y081523)

摘　　要：基于质量、动量和能量守恒方程,建立泡沫流体在圆管内流动与换热的物理模型和数学模型,并利用FLUENT软件进行模拟,得到不同雷诺数下圆管内的压力损失、管道横截面上的速度分布和表观黏度分布,同时回归了不同雷诺数下的摩阻系数和努塞尔数经验关系式。结果表明:管内压力沿管程不断降低,且流速越大压降越大;管内温度沿管程不断升高,且流速越小温升越大;管道横截面上的速度、温度分布不均匀,越接近管壁速度越小,温度越高。The flow and heat transfer physical and mathematical models of foam fluid in pipes were established on the basis of mass, momentum and energy conservation equation. And the flow and heat exchange rules were simulated using FLUENT software. The pressure losses, velocity distribution and apparent viscosity distribution in section of different Reynolds number were given. And an empirical regression correlation between Nusseh number and friction coefficient in different Reynolds number was given. The results show that the pressure in pipe decreases along pipe, and the pressure drop increases with foam flow velocity rising. The temperature increases along pipe, and the differential temperature increases with foam flow velocity decreasing. The velocity and temperature distributions are nonuniform on cross section. The velocity is small and the temperature is high close to the pipe wall .

关 键 词：泡沫管流 流动与换热 数值模拟 努塞尔数 

分 类 号：O37[理学—流体力学]