| 单排孔吸气诱导的层流边界层流场数值研究 |
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| 引用本文： | 闫指江,刘沛清,段会申,刘杰.单排孔吸气诱导的层流边界层流场数值研究[J].航空工程进展,2011,2(1):12-18. |
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| 作者姓名： | 闫指江 刘沛清 段会申 刘杰 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100191 |
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| 基金项目： | 航空支持基金(08ZA51003); 国家973重点项目(2009CB7240010) |
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| 摘 要： | 结合单孔吸气感应的边界层三维流场的特点,使用Fluent求解器,数值模拟了单排孔吸气感应的三维层流边界层流场,研究了孔间距及吸气参数对流场结构的影响。结果表明：在孔间距为2倍孔径的条件下,纵向涡会相互作用形成一个周期性脱落的＂马蹄涡＂;在孔间距不小于5倍孔径的条件下,孔尾部都会形成类似＂牛角＂形的反向旋转纵向涡对;在孔间距为10倍孔径的条件下,吸气速度的增加以及位移边界层厚度的减小都会使得纵向涡的涡量峰值增大、涡核的间距增加以及涡核中心的距壁高度增大。该研究结果可为吸气层流流动控制的工程应用提供计算参考。
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| 关 键 词： | 单排孔 吸气 纵向涡对 层流边界层 数值模拟 |
Boundary Layer Numerical Research of a Laminar Flow Induced by a Row of Perforations Suction |
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| Yan Zhijiang,Liu Peiqing,Duan Huishen,Liu Jie.Boundary Layer Numerical Research of a Laminar Flow Induced by a Row of Perforations Suction[J].Advances in Aeronautical Science and Engineering,2011,2(1):12-18. |
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| Authors: | Yan Zhijiang Liu Peiqing Duan Huishen Liu Jie |
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| Institution: | Yan Zhijiang,Liu Peiqing,Duan Huishen,Liu Jie(School of Aeronautic Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | Combining the characteristics of three-dimensional laminar flow induced by single perforation suction,in this paper,boundary layer of a three-dimensional laminar flow induced by a row of perforations suction is simulated by using Fluent as numerical solver.The effect of different perforation spacing and suction parameters on flow field structure is then studied.The final results show that a vertical vortex pair will interact and come into being periodic shedding horseshoe-shape vortex when the perforation s... |
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| Keywords: | single row suction vertical vortex pair laminar flow boundary layer numerical simulation |
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