| 基于MHD的磁射流抛光中流场的分析与模拟 |
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| 引用本文： | 施春燕,伍凡,袁家虎,万勇建.基于MHD的磁射流抛光中流场的分析与模拟[J].光学技术,2009,35(5). |
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| 作者姓名： | 施春燕 伍凡 袁家虎 万勇建 |
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| 作者单位： | 中国科学院光电技术研究所,成都,610209;中科院研究生院,北京,100049 |
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| 摘 要： | 从理论上分析了磁射流抛光中的磁场与流场的相互作用,构建了磁射流抛光的冲击射流模型,基于磁流体动力学对磁射流抛光过程的紊动冲击射流进行数值模拟,得到了磁射流抛光过程的连续流场和射流在工件壁面上的压力、速度、紊动强度分布。通过比较射流抛光和磁射流抛光的数值计算结果,分析了磁流变效应对射流稳定性的影响,从射流的流场、速度、紊动强度等方面分析射流在磁场中稳定的原因。
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| 关 键 词： | 磁射流抛光 磁流体动力学(MHD) 流场 |
Analysis and simulation of flow field in magnetorheological jet polishing by MHD |
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| SHI Chun-yan,WU Fan,Yuan Jia-hu,Wan Yong-jian.Analysis and simulation of flow field in magnetorheological jet polishing by MHD[J].Optical Technique,2009,35(5). |
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| Authors: | SHI Chun-yan WU Fan Yuan Jia-hu Wan Yong-jian |
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| Institution: | 1.The Institute of Optics and Electronics;The Chinese Academy of Sciences;Chengdu 610209;China;2.Graduate school of the Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | In magnetorheological jet polishing(MJP),by analyzing the mutual action between flow field and magnetic field in magnetorheological jet polishing,physical model of the magnetorheological jet polishing system is established,and the turbulent impinging jet in magnetorheological jet polishing process is simulated by magnetohydrodynamics.Then the continuity fluid field of magnetorheological jet polishing and the distribution of pressure,velocity,turbulent intensity on the wall of work piece are got.Based on the... |
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| Keywords: | optics finishing magnetorheological jet polishing MHD flow field |
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