| 分离重组错位通道微混合器混合及结构研究 |
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| 引用本文： | 夏国栋,吴宏杰,李健,崔珍珍.分离重组错位通道微混合器混合及结构研究[J].工程热物理学报,2012(8):1353-1356. |
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| 作者姓名： | 夏国栋 吴宏杰 李健 崔珍珍 |
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| 作者单位： | 北京工业大学环境与能源工程学院,强化传热与过程节能教育部重点实验室暨传热与能源利用北京市重点实验室 |
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| 基金项目： | 国家自然科学基金项目(No.51176002);教育部博士学科点专项基金(No.20111103110009) |
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| 摘 要： | 本文对基于非对称分离重组原理优化得到的错位通道微混合器的混合特性进行了数值模拟,并采用混合强度值作为衡量指标。结果表明,Re在1到80的变化范围内,微混合器的混合效果受通道几何结构参数影响较大,即主次通道上错位通道结构的布置有利于提高微混合器的混合强度。综合考虑混合性能和微通道内压降变化等条件,当错位通道结构参数ω3/ω4=1时,非对称分离重组错位通道微混合器的混合强度可提高到86%左右。
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| 关 键 词： | 非对称分离重组 错位通道 混合强度 数值模拟 |
A Study of Mixing Index and Geometric Structure for a Split and Recombine Micromixer With Dislocation Channel |
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| XIA Guo-Dong WU Hong-Jie LI Jian,CUI Zhen-Zhen.A Study of Mixing Index and Geometric Structure for a Split and Recombine Micromixer With Dislocation Channel[J].Journal of Engineering Thermophysics,2012(8):1353-1356. |
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| Authors: | XIA Guo-Dong WU Hong-Jie LI Jian CUI Zhen-Zhen |
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| Institution: | (Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,School of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Based on the principle of asymmetric split and recombine,this paper has adopted a numerical simulation for the optimized micromixer with dislocation sub-channel to get mixing performance and taken the mixing index as a measurement index.The results show that when Re is ranging from 1 to 80,parameters of geometric structure affect the mixing index of the micromixer obviously and the mixing index is improved if the dislocation sub-channel is set in the major channel. Considering the mixing performance and the pressure drop in the sub-channel,the mixing index of asymmetric split and recombine micromixer with dislocation sub-channel can be increased to 86% when the geometric structure parameter of the dislocation sub-channel isω3/ω4=1. |
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| Keywords: | asymmetric split and recombine dislocation sub-channel mixing index:numerical simulation |
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