| 射流陀螺流场的有限元分析 |
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| 引用本文： | 余全刚,朴林华,王星.射流陀螺流场的有限元分析[J].北京机械工业学院学报,2011(4):65-68. |
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| 作者姓名： | 余全刚 朴林华 王星 |
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| 作者单位： | 北京信息科技大学传感技术研究中心,北京100101 |
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| 基金项目： | 国家自然科学基金资助项目（60772012）;新世纪优秀人才支持计划（NCET）资助项目;北京市重点实验室开放课题资助项目;北京市新世纪百千万人才工程培养资助项目;2011北京市教委科技面上项目（KM201110772020）;现代测控技术教育部重点实验室资助. |
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| 摘 要： | 针对射流陀螺敏感元件内的流场进行了有限元分析。采用有限元方法，利用ANSYS—FLOTRANCFD软件，通过建模、划分网格、加载和求解等途径，计算了敏感元件内的流场分布。计算结果表明：由喷嘴喷出的射流柱呈喇叭状扩散，由出气孔排出时，射流流速衰减为喷嘴处流速的28．4％；出气孔截面气流最低流速为最高流速的19％；其余未经出气孔排出的部分滞留在敏感元件内形成了涡流。
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| 关 键 词： | 射流柱 有限元分析 流场分布 涡流 |
FEM analysis on jet gero of flow distribution |
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| YU Quan-gang,PIAO Lin-hua,WANG Xing.FEM analysis on jet gero of flow distribution[J].Journal of Beijing Institute of Machinery,2011(4):65-68. |
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| Authors: | YU Quan-gang PIAO Lin-hua WANG Xing |
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| Affiliation: | (Centre for Sensors Technology Research, Beijing Information Science and Technology University, Beijing 100101, China) |
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| Abstract: | The flow distribution in the sensitive element of jet gero is analyzed by FEM. Using ANSYS-FLOTRAN CFD software, the finite element simulation is conducted by a series of procedures, such as two-dimensional model building of jet gero, meshing, loads applying and equation solving, The flow distribution in the sensitive element is calculated. The results show that the jet spreads as horn form after ejecting, and the jet velocity decreases 28.4% when it discharges from the vent. The minimal jet flow velocity is 21% of the maximal when it discharges. The other parts without discharging form eddy remaining in the sensitive element. |
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| Keywords: | jet finite element analysis flow distribution eddy |
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