| 曝气速度对曝气池流场影响的数值模拟分析 |
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| 引用本文： | 魏文礼,魏伟乐,陈晓朋,白朝伟,刘玉玲.曝气速度对曝气池流场影响的数值模拟分析[J].应用力学学报,2021(1):382-387. |
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| 作者姓名： | 魏文礼 魏伟乐 陈晓朋 白朝伟 刘玉玲 |
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| 作者单位： | 西安理工大学水利水电学院 |
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| 基金项目： | 国家自然科学基金(51578452,51178391);陕西省科学研究计划项目(2016GY-180,2014K15-03-05)。 |
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| 摘 要： | 采用欧拉-欧拉多相流模型,辅以RNG k-ε湍流模型对一简化的推流式曝气池进行了数值模拟,控制方程采用有限体积法离散,并采用PISO(Pressure-Implicit with Splitting of Operators)算法求解.通过模拟得到了不同曝气速度下曝气池特征断面的气相体积分数、气液两相速度的分布规律以及...
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| 关 键 词： | 曝气池 数值模拟 气-液两相流 气相体积分数 湍动能 |
Numerical simulation and analysis of the effect of aeration velocity on flow field of an aeration tank |
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| Wei Wenli,Wei Weile,Chen Xiaopeng,Bai Zhaowei,Liu Yuling.Numerical simulation and analysis of the effect of aeration velocity on flow field of an aeration tank[J].Chinese Journal of Applied Mechanics,2021(1):382-387. |
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| Authors: | Wei Wenli Wei Weile Chen Xiaopeng Bai Zhaowei Liu Yuling |
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| Institution: | (Institute of Hydraulic Engineering,Xi’an University of Technology,710048,Xi’an,China) |
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| Abstract: | The Euler-Euler multiphase flow model combined with the RNG k-ε turbulence model is used numerically to simulate the simplified plug-flow aeration tank. The governing equations were discretized by the finite volume method(FVM), and solved by the Pressure-Implicit with Splitting of Operators(PISO) algorithm. By the simulation, the air volume fraction, the gas-liquid two-phase flow velocity, and the distribution of the turbulent kinetic energy on the characteristic sections of the aeration tank are obtained under different aeration speeds, according to which the best range of the aeration speed, 6.25 m/s~7.813 m/s, is obtained, which provides a reference for the reasonable running of an aeration tank. |
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| Keywords: | aeration tank numerical simulation gas-liquid two-phase flow air volume fraction turbulent kinetic energy |
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