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主动射流控制水翼空化的数值模拟与分析

王巍 唐滔 卢盛鹏 张庆典 王晓放

王巍, 唐滔, 卢盛鹏, 张庆典, 王晓放. 主动射流控制水翼空化的数值模拟与分析[J]. 力学学报, 2019, 51(6): 1752-1760. doi: 10.6052/0459-1879-19-222
引用本文: 王巍, 唐滔, 卢盛鹏, 张庆典, 王晓放. 主动射流控制水翼空化的数值模拟与分析[J]. 力学学报, 2019, 51(6): 1752-1760. doi: 10.6052/0459-1879-19-222
Wang Wei, Tang Tao, Lu Shengpeng, Zhang Qingdian, Wang Xiaofang. NUMERICAL SIMULATION AND ANALYSIS OF ACTIVE JET CONTROL OF HYDROFOIL CAVITATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(6): 1752-1760. doi: 10.6052/0459-1879-19-222
Citation: Wang Wei, Tang Tao, Lu Shengpeng, Zhang Qingdian, Wang Xiaofang. NUMERICAL SIMULATION AND ANALYSIS OF ACTIVE JET CONTROL OF HYDROFOIL CAVITATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(6): 1752-1760. doi: 10.6052/0459-1879-19-222

主动射流控制水翼空化的数值模拟与分析

doi: 10.6052/0459-1879-19-222
基金项目: 

1) 国家自然科学基金 (51876022) 和国家 973 计划 (2015CB057301) 资助.

详细信息
    作者简介:

    2) 王巍, 副教授, 主要研究方向: 先进动力装置及流体机械设计和优化. E-mail: wangw@dlut.edu.cn

  • 中图分类号: TV131.3+2

NUMERICAL SIMULATION AND ANALYSIS OF ACTIVE JET CONTROL OF HYDROFOIL CAVITATION

  • 摘要:

    为了改善高速流动工况下水翼吸力面上流场的空化特性,提出了水翼表面主动射流对绕水翼周围流动加以控制的方法.基于密度分域滤波的FBDCM混合湍流模型联合Zwart-Gerber-Belamri空化模型,分析了来流空化数为0.83,来流攻角为8°,射流位置距水翼前缘为x=0.19c时,主动射流对于水翼吸力面上流动的空化特性和水动力特性影响.对回射流的强度进行了量化分析,以探究回射流与流场空化特性的关系.数值分析结果表明,在射流水翼吸力面上的时均空泡体积为原始水翼的1/15,使得流场内空化流动由云空化状态转变为较为稳定的片空化状态,显著地削弱了云空化的发展.此外,射流极大地改善了水翼的水动力性能,使得水翼的升阻比较原始水翼提高了22.9%,空泡的脱落频率减少了26.2%,空泡脱落所引起的振幅减小了9.1%.射流大幅降低了水翼吸力面上低压区面积,水翼吸力面上流体的逆向压力减小,回射流强度降低;同时,射流使水翼吸力面上的边界层减薄,增强了流动的抗逆压梯度能力,一定程度上阻挡了回射流向水翼前缘的流动,这也从机理上分析了主动射流抑制空化的原因.

     

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出版历程
  • 收稿日期:  2019-08-19
  • 网络出版日期:  2019-10-21
  • 刊出日期:  2019-11-18

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