| 某静态混合器内气液两相流动及压降特性数值模拟 |
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| 引用本文： | 张慧宇,张惟斌,韩宇明,衡亚光,江启峰,G·博华.某静态混合器内气液两相流动及压降特性数值模拟[J].西华大学学报(自然科学版),2021,40(3):78-82. |
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| 作者姓名： | 张慧宇 张惟斌 韩宇明 衡亚光 江启峰 G·博华 |
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| 作者单位： | 1.西华大学能源与动力工程学院，四川 成都 610039 |
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| 基金项目： | 国家重点研发计划（2018YFB0905200）；国家自然科学基金（51769035）；西华大学流体及动力机械教育部重点实验室开放基金项目资助（szjj2018-120）；西华大学研究生创新基金资助（ycjj2019103）；四川省教育厅项目资助（18ZB0563）；流体机械及工程四川省重点实验室开放基金项目资助（szjj2016-002） |
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| 摘 要： | 以某型静态混合器为研究对象，运用CFD软件ANSYS CFX，借助欧拉–拉格朗日方法，在SST湍流模型下进行气液混合性能分析，得到内部流场的流动与压降规律。研究结果表明:气液两相流流经孔盘通孔，强化流体间的相互作用，对气液的混合具有促进作用；随着雷诺数的增加，气液两相流流经混合器的压降呈明显增大趋势，且混合器中局部压降与元件数成正比，当雷诺数大于2.6×105时，两相流在混合器中压降更加显著。
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| 关 键 词： | 静态混合器 气液两相流 混合特性 压降 |
| 收稿时间： | 2020-01-06 |
Numerical Simulation of the Characteristics of Gas-Liquid Two-phase Flow and Pressure Drop in a Static Mixer |
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| ZHANG Huiyu,ZHANG Weibin,HAN Yuming,HENG Yaguang,JIANG Qifeng,Gérard BOIS.Numerical Simulation of the Characteristics of Gas-Liquid Two-phase Flow and Pressure Drop in a Static Mixer[J].Journal of Xihua University:Natural Science Edition,2021,40(3):78-82. |
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| Authors: | ZHANG Huiyu ZHANG Weibin HAN Yuming HENG Yaguang JIANG Qifeng Gérard BOIS |
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| Affiliation: | 1.Energy and Power Engineering, Xihua University, Chengdu 610039 China |
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| Abstract: | The commercial CFD software ANSYS CFX and Euler-Lagrange method were adopted in the present study to analyze the mixing performance of gas-liquid mixer by using the STT turbulence model, and the flow field and pressure drop in the mixer were obtained. The results show that the gas-liquid two-phase flow through the holes of the orifice disc enhances the interaction between fluids and promotes the mixing of gas and liquid. The pressure drop of gas-liquid two-phase flowing through the mixer increases significantly with the increasing of Reynolds number, and the local pressure drop is directly proportional to the number of the components. When Reynolds number is higher than 2.6×105, the pressure drop of the two-phase flowing in the mixer is more significant. |
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