Abstract
Experiments and large-eddy simulations (LESs) are conducted to study the effectiveness and the underlying physical mechanisms of a passive control technique for suppressing the self-sustained oscillations of incompressible flow over aperture-cavities. The control technique is implemented by installing a wedge block above the chamfered leading-edge. The experiments are carried out in a low-speed water tunnel with the freestream velocity ranging from 0.4 m/s to 4.4 m/s, while the large-eddy simulations are carried out corresponding to the experiment at a velocity of 4.0 m/s. The wall pressure fluctuations measured along the cavity floor show that a significant suppression of the self-sustained oscillations of the shear layers can be achieved by the control device. Furthermore, the suppression performance is improved as the freestream velocity increases, not limited to the design point of the control device. The analysis of numerical simulation results focuses on three aspects, the vorticity fields, the velocity fields and the pressure fields, and the physical effects of the control device on the incompressible aperture-cavity flow are visualized. Three mechanisms of suppressing the cavity oscillations are identified from the numerical results, which are the destruction of the large vortex structures by the high frequency vortical excitations, the inhabitation of the intracavity recirculation feedback by introducing the lower shunt flow, and the attenuation of the trailing-edge impingement by thickening the shear layer.
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References
Rossiter J. E. Wind-tunnel experiments on the flow over rectangular cavities at subsonic and transonic speeds [R]. Aeronautical Research Council, Technical Report No. R&M 3438, 1964.
Lusseyran F., Pastur L. R., Letellier C. Dynamical analysis of an intermittency in an open cavity flow [J]. Physics of Fluids, 2008, 20(11): 114101.
Basley J., Pastur L. R., Lusseyran F. et al. Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV [J]. Experiments in Fluids, 2011, 50(4): 905–918.
Yamouni S., Sipp D., Jacquin L. Interaction between feedback aeroacoustic and acoustic resonance mechanisms in a cavity flow: A global stability analysis [J]. Journal of Fluid Mechanics, 2013, 717: 134–165.
Tuerke F., Sciamarella D., Pastur L. R. et al. Frequency-selection mechanism in incompressible open-cavity flows via reflected instability waves [J]. Physical Review E, 2015, 91: 013005.
Basley J., Pastur L. R., Delprat N. et al. Space-time aspects of a three-dimensional multi-modulated open cavity flow [J]. Physics of Fluids, 2013, 25(6): 064105.
Tuerke F., Pastur L., Fraigneau Y. et al. Nonlinear dynamics and hydrodynamic feedback in two-dimensional double cavity flow [J]. Journal of Fluid Mechanics, 2017, 813: 1–22.
Tuerke F., Lusseyran F., Sciamarella D. et al. Nonlinear delayed feedback model for incompressible open cavity flow [J]. Physical Review E, 2020, 5(2): 24401.
Ma R., Slaboch P. E., Morris S. C. Fluid mechanics of the flow-excited Helmholtz resonator [J]. Journal of Fluid Mechanics, 2009, 623: 1–26.
Dai X., Jing X., Sun X. Discrete vortex model of a Helmholtz resonator subjected to high-intensity sound and grazing flow [J]. Journal of the Acoustical Society of America, 2012, 132(5): 2988–2996.
Bennett G. J., Stephens D. B., Rodriguez V. F. Resonant mode characterisation of a cylindrical Helmholtz cavity excited by a shear layer [J]. Journal of the Acoustical Society of America, 2017, 141(1): 7–18.
Tian J., Yuan G. Q., Hua H. X. Flow induced structural vibration and sound radiation of a hydrofoil with a cavity [J]. Journal of Hydrodynamics, 2018, 30(6): 1022–1037.
Blake W. K. Shear layer instabilities, flow tones, and jet noise, in: Mechanics of flow induced sound and vibration [M]. London, UK: Academic Press, 1986, 130–218.
Cattafesta L. N., Song Q., Williams D. R. et al. Active control of flow-induced cavity oscillations [J]. Progress in Aerospace Sciences, 2008, 44(7–8): 479–502.
Zhang Y., Sun Y., Arora N. et al. Suppression of cavity flow oscillations via three-dimensional steady blowing [J]. AIAA Journal, 2019, 57(1): 90–105.
Wang X., Yang D., Liu J. et al. Control of pressure oscillations induced by supersonic cavity flow [J]. AIAA Journal, 2020, 58(5): 2070–2077.
Shaaban M., Mohany A. Passive control of flow-excited acoustic resonance in rectangular cavities using upstream mounted blocks [J]. Experiments in Fluids, 2015, 56(4): 1–12.
Wang Y., Li S., Yang X. Numerical investigation of the passive control of cavity flow oscillations by a dimpled non-smooth surface [J]. Applied Acoustics, 2016, 111: 16–24.
Luo K., Zhu W., Xiao Z. et al. Investigation of spectral characteristics by passive control methods past a supersonic cavity [J]. AIAA Journal, 2018, 56(7): 2669–2686.
Sarpotdar S., Panickar P., Raman G. Stability of a hybrid mean velocity profile and its relevance to cavity resonance suppression [J]. Physics of Fluids, 2010, 22(7): 076101.
Martinez M. A., Di Cicca G. M., Iovieno M. et al. Control of cavity flow oscillations by high frequency forcing [J]. Journal of Fluids Engineering, 2012, 134(5): 1–11.
Zhang W., Xu R. Numerical investigation on the influence of leading-edge spoilers on underwater flow-induced cavity oscillations [J]. Journal of Vibration and Shock, 2021, 40(24): 12–21(in Chinese).
Kim S. J., Huang W., Sung H. J. The reduction of noise induced by flow over an open cavity [J]. International Journal of Heat Fluid Flow, 2020, 82: 108560.
Nicoud F., Ducros F. Subgrid-scale stress modelling based on the square of the velocity gradient tensor [J]. Flow, Turbulence and Combustion, 1999, 62(3): 183–200.
Ukeiley L., Ponton M. K., Seiner J. M. et al. Suppression of pressure loads in cavity flows [J]. AIAA Journal, 2004, 42(1): 70–79.
Panigrahi C., Vaidyanathan A., Nair M. T. Effects of subcavity in supersonic cavity flow [J]. Physics of Fluids, 2019, 31(3): 036101.
Liu C., Gao Y. S., Dong X. R. et al. Third generation of vortex identification methods: Omega and Liutex/Rortex based systems [J]. Journal of Hydrodynamics, 2019, 31(2): 205–223.
Hunt J., Wray A., Moin P. Eddies, streams, and convergence zones in turbulent flows [R]. Proceedings of the Summer Program. Center for Turbulence Research, 1988, 193–208.
Zhang Y. H., Hu X. J., Lan W. et al. Application of Omega vortex identification method in cavity buffeting noise [J]. Journal of Hydrodynamics, 2021, 33(2): 259–270.
Bengana Y., Loiseau J. C., Robinet J. C. et al. Bifurcation analysis and frequency prediction in shear-driven cavity flow [J]. Journal of Fluid Mechanics, 2019, 875: 725–757.
Larcheveque L., Sagaut P., Le T. H. et al. Large-eddy simulation of a compressible flow in three-dimensional open cavity at high Reynolds number [J]. Journal of Fluid Mechanics, 2004, 516: 265–301.
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Biography: Wen-wen Zhang (1995–), Male, Ph. D. Candidate
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Zhang, Ww., Xu, Rw., He, L. et al. Suppression of self-sustained oscillations of incompressible flow over aperture-cavities and its mechanisms. J Hydrodyn 34, 876–892 (2022). https://doi.org/10.1007/s42241-022-0070-z
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DOI: https://doi.org/10.1007/s42241-022-0070-z