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攻角拉起时前体非对称涡诱导机翼摇滚运动

徐思文 邓学蓥 王延奎

徐思文, 邓学蓥, 王延奎等 . 攻角拉起时前体非对称涡诱导机翼摇滚运动[J]. 北京航空航天大学学报, 2015, 41(11): 2078-2084. doi: 10.13700/j.bh.1001-5965.2014.0707
引用本文: 徐思文, 邓学蓥, 王延奎等 . 攻角拉起时前体非对称涡诱导机翼摇滚运动[J]. 北京航空航天大学学报, 2015, 41(11): 2078-2084. doi: 10.13700/j.bh.1001-5965.2014.0707
XU Siwen, DENG Xueying, WANG Yankuiet al. Wing rock motion induced by forebody asymmetric vortices in pitch-up[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2078-2084. doi: 10.13700/j.bh.1001-5965.2014.0707(in Chinese)
Citation: XU Siwen, DENG Xueying, WANG Yankuiet al. Wing rock motion induced by forebody asymmetric vortices in pitch-up[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2078-2084. doi: 10.13700/j.bh.1001-5965.2014.0707(in Chinese)

攻角拉起时前体非对称涡诱导机翼摇滚运动

doi: 10.13700/j.bh.1001-5965.2014.0707
基金项目: 国家自然科学基金(11172030);国家自然科学青年科学基金(11102012)
详细信息
    作者简介:

    徐思文(1987-),男,安徽六安人,博士研究生,mist1987@163.com

    通讯作者:

    邓学蓥(1941-),男,北京人,教授,dengxueying@vip.sina.com,研究方向为大攻角空气动力学.

  • 中图分类号: V211.7

Wing rock motion induced by forebody asymmetric vortices in pitch-up

  • 摘要: 针对目前前体非对称涡诱导机翼摇滚研究时攻角往往处于静态而没有考虑攻角动态拉起的问题,在北航D4风洞中采用细长旋成体与30°后掠翼的组合体模型,通过不同拉起速度下的机翼摇滚运动实验,分析了攻角拉起速度对前体非对称涡诱导机翼摇滚运动的影响及影响产生的原因;随后通过在快速拉起摇滚运动过程中进行模型表面压力测量,研究了快速拉起机翼摇滚的流动机理.实验结果表明,由于机翼摇滚运动的时间随攻角拉起速度增加而减少,使得在3个不同的拉起速度分区内,摇滚运动呈现为不同的运动形态,其中第3个快速拉起分区内的摇滚运动为与攻角静态时完全不同的类正弦摇滚运动形态.与攻角静态时机翼摇滚的流动机理不同,快速拉起时这种类正弦摇滚运动主要源于前体非对称涡随攻角的演化,前体非对称涡随滚转角的涡型切换不再重要.

     

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出版历程
  • 收稿日期:  2014-11-17
  • 修回日期:  2015-02-05
  • 网络出版日期:  2015-11-20

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