| 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。 |
| 关键词: 泡沫管流 流动与换热 数值模拟 努塞尔数 |
| DOI： |
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| 基金项目: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) |
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| Flow and heat transfer numerical simulation of foam fluid in pipes |
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LIN Ri-yi1,LI Zhao-min2,LI Song-yan2,YU Wen-bin3,GAO Zhi-hua4
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(1. College of Transport & Storage and Civil Engineering in China University of Petroleum，Dongying 257061, Chirm;2. College of Petroleum Engineering in China University of Petroleum, Dongying 257061, China;3. Zhundong Oil Production Plant in Xinjiang Oilfield Company，Fukang 831511, China;4. Changqing Oilfield Company，Yulin 719000, China)
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| Abstract: |
| 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 Nusselt 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. |
| Key words: foam flow in pipe flow and heat transfer numerical simulation Nussalt number |
