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合成射流对圆柱绕流流固耦合特性影响分析

丁林 杨林 王海博

丁林, 杨林, 王海博. 合成射流对圆柱绕流流固耦合特性影响分析[J]. 航空动力学报, 2019, 34(12): 2529-2538. doi: 10.13224/j.cnki.jasp.2019.12.001
引用本文: 丁林, 杨林, 王海博. 合成射流对圆柱绕流流固耦合特性影响分析[J]. 航空动力学报, 2019, 34(12): 2529-2538. doi: 10.13224/j.cnki.jasp.2019.12.001
DING Lin, YANG Lin, WANG Haibo. Analysis of effect of synthetic jet on fluid-solid coupling characteristics around cylinder[J]. Journal of Aerospace Power, 2019, 34(12): 2529-2538. doi: 10.13224/j.cnki.jasp.2019.12.001
Citation: DING Lin, YANG Lin, WANG Haibo. Analysis of effect of synthetic jet on fluid-solid coupling characteristics around cylinder[J]. Journal of Aerospace Power, 2019, 34(12): 2529-2538. doi: 10.13224/j.cnki.jasp.2019.12.001

合成射流对圆柱绕流流固耦合特性影响分析

doi: 10.13224/j.cnki.jasp.2019.12.001
基金项目: 国家自然科学基金(51776021)

Analysis of effect of synthetic jet on fluid-solid coupling characteristics around cylinder

  • 摘要: 利用合成射流对钝体绕流流动特性及流致振动进行了主动控制数值研究。结果表明:随着合成射流动量系数的增加,对圆柱涡激振动的抑制效果越好。随着射流位置从后驻点移向前驻点,圆柱尾流涡脱模态呈现出柱体背流面附着对称涡的定常状态-过渡状态-反对称2S涡脱落模式的演变过程。圆柱双自由度振动轨迹为“8”字形,完全受到抑制时轨迹为“一”字型,部分抑制时其轨迹为“月牙形”,合成射流的引入可有效降低圆柱所受升力,能有效的抑制圆柱横向和流向振动,当合成射流对位于圆柱背风侧的1/4弧边缘时,圆柱的流向振荡和横流振荡均可被抑制,其抑制效果最好。

     

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出版历程
  • 收稿日期:  2019-06-06
  • 刊出日期:  2019-12-28

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