绕弹性水翼空化流激振动特性实验研究

刘韵晴; 郭一梦; 黄彪; 吴钦; 王国玉

doi:10.7638/kqdlxxb-2021.0072

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绕弹性水翼空化流激振动特性实验研究

研究论文 | 更新时间：2026-05-28

- 绕弹性水翼空化流激振动特性实验研究
- Experimental investigations of cavitating flow induced vibration around a flexible hydrofoil
- 空气动力学学报 2022年40卷第1期页码：41-48
- 作者机构：
  
  北京理工大学,北京,100081
- 作者简介：
  
  刘韵晴（1996-），女，河北唐山人，博士，研究方向：空化水动力学. E-mail：602011867@qq.com
  黄彪*，教授，研究方向：空化水动力学. E-mail：huangbiao@bit.edu.cn
- 基金信息：
  
  国家自然科学基金（52079004，U20B2004）;北京市自然科学基金（3212023）
- DOI：10.7638/kqdlxxb-2021.0072
  中图分类号： O359+.1;TV131.3+2
- 纸质出版：2022
- 稿件说明：
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刘韵晴, 郭一梦, 黄彪, 等. 绕弹性水翼空化流激振动特性实验研究[J]. 空气动力学学报, 2022, 40(1): 41−48.

LIU Yunqing, GUO Yimeng, HUANG Biao, et al. Experimental investigations of cavitating flow induced vibration around a flexible hydrofoil[J]. 2022, 40(1): 41-48.
刘韵晴, 郭一梦, 黄彪, 等. 绕弹性水翼空化流激振动特性实验研究[J]. 空气动力学学报, 2022, 40(1): 41−48. DOI： 10.7638/kqdlxxb-2021.0072

LIU Yunqing, GUO Yimeng, HUANG Biao, et al. Experimental investigations of cavitating flow induced vibration around a flexible hydrofoil[J]. 2022, 40(1): 41-48. DOI： 10.7638/kqdlxxb-2021.0072.

摘要

弹性结构在空化载荷作用下易发生振动，从而威胁结构安全，研究绕弹性水翼的空化流激振动特性显得尤为重要。采用高速摄像、测力装置和激光多普勒同步测量系统，分别获取了不同空化阶段的空泡形态、水动力、结构变形及相应诱导的结构振动特性。研究结果表明，弹性水翼的水动力系数在无空化阶段几乎保持不变，随着空化产生，升力、阻力和扭转力矩系数都随着空化数减小呈现先增大后减小的趋势。水翼在云状空化阶段下振动最为剧烈，大尺度空泡的周期性脱落导致结构振动速度呈现周期性变化。初生空化、片状空化和云状空化阶段的振动速度、概率密度分布均服从高斯分布，其中云状空化阶段的高斯分布曲线均方根最大，这是由于云状空泡团的脱落和溃灭导致的速度波动较大。在云状空化阶段，较大空化数下呈现回射流非定常脱落机制，较小空化数下呈现激波非定常脱落机制。回射流机制下，空穴演化呈现附着空穴发展-回射流发展-云状空穴脱落和溃灭的非定常过程。激波机制下空穴演化具有附着空穴发展-回射流发展-云状空穴脱落和溃灭-残余空穴溃灭的非定常特征。不同脱落机制下结构振动特性存在显著差异，回射流机制呈现小幅、高频的振动特性。由于大尺度空泡团的溃灭激波及其引起的附着空泡的二次溃灭，导致结构振动加剧，激波机制呈现大幅、低频的振动特性。

Abstract

Flexible structures are prone to vibrate under cavitation loads

threatening the safety of structures. Therefore

it is important to analyse the cavitating flow induced vibration around flexible hydrofoils. A high-speed camera

a Laser Doppler Vibrometer (LDV)

and a hydrodynamic load cell are exploited to observe the cavitation structures

measure the hydrofoil vibrations

and measure the lift and drag static forces

respectively. The load coefficients of the flexible hydrofoil keep constant in the sub-cavitation stage

while they first increase then decrease with the decay of the cavitation number in the cavitating flow. The probability density functions of vibration velocities in the incipient cavitation

sheet cavitation

and cloud cavitation stages are all Gaussian. The vibration velocity of the hydrofoil has the largest amplitude and root-mean-square in the cloud cavitation stage and varies periodically due to the periodic shedding and collapse of the large-scale cloud cavitation. The re-entrant jet and shockwave shedding are the two main shedding mechanisms in the cloud cavitation stage. Similarly

the evolution of the cloud cavity induced by the shockwave mechanism can be divided into four stages: 1) the attached cavity growth; 2) the re-entrant jet development; 3) the shedding and collapse of the cloud cavity; 4) residual cavity collapse. The vibration induced by the re-entrant jet mechanism has small amplitude and high frequency

while the opposite is true for that induced by the shockwave mechanism due to the collapse of the large-scale cavity and the subsequent secondary collapse of the attached cavity.

关键词

Keywords

references

WU Q, GUO Y M, LIU Y Q, et al. Review on the cavitating flow-induced vibrations[J]. Acta Aerodynamica Sinica, 2020, 38(4): 746-760. (in Chinese)

ZHANG W, YANG P, ZHU B. Review of cloud cavitation structure collapse and its prediction of erosion risk[J]. Acta Aerodynamica Sinica, 2020, 38(4): 761-770. (in Chinese)

HUANG B, WU Q, WANG G Y. Progress and prospects of investigation into unsteady cavitating flows[J]. Journal of Drainage and Irrigation Machinery Engineering, 2018, 36(1): 1-14. (in Chinese)

WANG G Y, SENOCAK I, SHYY W, et al. Dynamics of attached turbulent cavitating flows[J]. Progress in Aerospace Sciences, 2001, 37(6): 551-581. DOI: 10.1016/S0376-0421(01)00014-8.

HUANG B, QIU S C, LI X B, et al. A review of transient flow structure and unsteady mechanism of cavitating flow[J]. Journal of Hydrodynamics, 2019, 31(3): 429-444. DOI: 10.1007/s42241-019-0050-0.

BRANDNER P A, WALKER G J, NIEKAMP P N, et al. An experimental investigation of cloud cavitation about a sphere[J]. Journal of Fluid Mechanics, 2010, 656: 147-176. DOI: 10.1017/S0022112010001072.

KAWANAMI Y, KATO H, YAMAGUCHI H, et al. Mechanism and control of cloud cavitation[J]. Journal of Fluids Engineering, 1997, 119(4): 788-794. DOI: 10.1115/1.2819499.

CALLENAERE M, FRANC J P, MICHEL J M, et al. The cavitation instability induced by the development of a re-entrant jet[J]. Journal of Fluid Mechanics, 2001, 444: 223-256. DOI: 10.1017/s0022112001005420.

SMITH S M, VENNING J A, PEARCE B W, et al. The influence of fluid–structure interaction on cloud cavitation about a flexible hydrofoil. Part 2[J]. Journal of Fluid Mechanics, 2020, 897: A28. DOI: 10.1017/jfm.2020.323.

WU J, GANESH H, CECCIO S. Multimodal partial cavity shedding on a two-dimensional hydrofoil and its relation to the presence of bubbly shocks[J]. Experiments in Fluids, 2019, 60(4): 1-17. DOI: 10.1007/s00348-019-2706-5.

SCHNERR G H, SEZAL I H, SCHMIDT S J. Numerical investigation of three-dimensional cloud cavitation with special emphasis on collapse induced shock dynamics[J]. Physics of Fluids, 2008, 20(4): 040703. DOI: 10.1063/1.2911039.

ARABNEJAD M H, AMINI A, FARHAT M, et al. Numerical and experimental investigation of shedding mechanisms from leading-edge cavitation[J]. International Journal of Multiphase Flow, 2019, 119: 123-143. DOI: 10.1016/j.ijmultiphaseflow.2019.06.010.

VENNING J, GIOSIO D, SMITH S, et al. The influence of nucleation on the spectral content of cloud cavitation about a hydrofoil[C]//10th International Symposium on Cavitation (CAV2018), 2018.

CHE B X, CAO L L, CHU N, et al. Dynamic behaviors of Re-entrant jet and cavity shedding during transitional cavity oscillation on NACA0015 hydrofoil[J]. Journal of Fluids Engineering, 2019, 141(6): 061101. DOI: 10.1115/1.4041716.

GANESH H, MÄKIHARJU S A, CECCIO S L. Bubbly shock propagation as a mechanism for sheet-to-cloud transition of partial cavities[J]. Journal of Fluid Mechanics, 2016, 802: 37-78. DOI: 10.1017/jfm.2016.425.

WANG C C, WANG G Y, HUANG B, et al. Experimental investigation of cavitation characteristics and dynamics in compressible turbulent cavitating flows 1)[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(5): 1296-1309. (in Chinese)

JI B, LUO X W, WU Y L, et al. Numerical investigation of three-dimensional cavitation evolution and excited pressure fluctuations around a twisted hydrofoil[J]. Journal of Mechanical Science and Technology, 2014, 28(7): 2659-2668. DOI: 10.1007/s12206-014-0622-4.

LI S C. Investigations on the characteristics of pressure pulsations for dynamic cavitat ing flows[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 1986, 7(1): 1-17. (in Chinese)

DUCOIN A, ANDRÉ ASTOLFI J, GOBERT M L. An experimental study of boundary-layer transition induced vibrations on a hydrofoil[J]. Journal of Fluids and Structures, 2012, 32: 37-51. DOI: 10.1016/j.jfluidstructs.2011.04.002.

LELONG A, GUIFFANT P, ANDRÉ ASTOLFI J. An experimental analysis of the structural response of flexible lightweight hydrofoils in cavitating flow[J]. Journal of Fluids Engineering, 2018, 140(2): 021116. DOI: 10.1115/1.4037990.

WU Q, HUANG B, WANG G Y, et al. The transient characteristics of cloud cavitating flow over a flexible hydrofoil[J]. International Journal of Multiphase Flow, 2018, 99: 162-173. DOI: 10.1016/j.ijmultiphaseflow.2017.10.006.

AMROMIN E, KOVINSKAYA S. Vibration of cavitating elastic wing in a periodically perturbed flow: excitation of subharmonics[J]. Journal of Fluids and Structures, 2000, 14(5): 735-751. DOI: 10.1006/jfls.2000.0291.

FENG C C. The measurement of vortex induced effects in flow past stationary and oscillating circular and D-section cylinders[D ] . The University of British Columbia, 1968. doi: 10.14288/1.0104049

ZHANG W W, LI X T, YE Z Y, et al. Mechanism of frequency lock-in in vortex-induced vibrations at low Reynolds numbers[J]. Journal of Fluid Mechanics, 2015, 783: 72-102. DOI: 10.1017/jfm.2015.548.

AUSONI P, FARHAT M, ESCALER X, et al. Cavitation influence on von kármán vortex shedding and induced hydrofoil vibrations[J]. Journal of Fluids Engineering, 2007, 129(8): 966-973. DOI: 10.1115/1.2746907.

YAO Z F, WANG F J, DREYER M, et al. Effect of trailing edge shape on hydrodynamic damping for a hydrofoil[J]. Journal of Fluids and Structures, 2014, 51: 189-198. DOI: 10.1016/j.jfluidstructs.2014.09.003.

DREYER M. Mind the gap: Tip leakage vortex dynamics and cavitation in axial turbines[D ] . Lausanne, Vaud, Switzerland: École Polytechnique Fédérale de Lausanne, 2015. doi: 10.5075/epfl-thesis-6611

WU Q, WANG Y N, WANG G Y. Experimental investigation of cavitating flow-induced vibration of hydrofoils[J]. Ocean Engineering, 2017, 144: 50-60. DOI: 10.1016/j.oceaneng.2017.08.005.

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