| 沿垂直壁面气-液降膜流动传质过程的数值研究 |
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| 引用本文： | 刘国兵,惠宇,王玉璋. 沿垂直壁面气-液降膜流动传质过程的数值研究[J]. 燃气轮机技术, 2012, 0(3): 34-39 |
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| 作者姓名： | 刘国兵 惠宇 王玉璋 |
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| 作者单位： | 上海交通大学机械与动力工程学院,动力机械与工程教育部重点实验室,上海200240 |
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| 基金项目： | 国家重点基础研究发展规划基金项目（973计划）（2007CB210102） |
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| 摘 要： | 在考虑气-液两相间质量源项和能量源项的条件下,基于VOF算法,建立了水和空气沿竖直平板壁面两相降膜流动传热传质的CFD模型。利用该模型研究了水和空气两相间的传质特性,分析了液膜波动、进气进液速度以及温度对传质的影响,计算结果表明:一定程度的液膜波动、进气速度和进液速度的提高、气-液之间的温差的增加,都能强化气-液之间的传质过程。
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| 关 键 词： | 降膜 传质 气-液两相流 数值模拟 |
Numerical Simulation of the Mass Transfer in Gas-Liquid Falling Film Flow on the Vertical Plate |
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| LIU Guo-bing,HUI Yu,WANG Yu-zhang. Numerical Simulation of the Mass Transfer in Gas-Liquid Falling Film Flow on the Vertical Plate[J]. Gas Turbine Technology, 2012, 0(3): 34-39 |
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| Authors: | LIU Guo-bing HUI Yu WANG Yu-zhang |
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| Affiliation: | (School of Mechanical Engineering, Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong Univ. , Shanghai 200240, China) |
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| Abstract: | By considering the mass-transfer source term and the heat-transfer source term in gas-liquid two-phase flow, a computational model based on the Volume of fluid（VOF） algorithm was established to describe the mass transfer of two-phase （air-water） falling film on a vertical plate. The model was used to analyze the influence of fluctuation, inner liquid velocity and inner gas velocity, inner liquid temperature on the mass transfer in water-air two phase flow. The results indicated that the film fluctuation, higher inner water and air velocity, higher inner water temperature can enhance the mass transfer in water-air falling film on a vertical plate. |
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| Keywords: | falling film mass transfer gas-liquid two-phase flow numerical simulation |
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