Active Wake Control of Flow Past a Circular Cylinder with Slot Jet
Publication: Journal of Aerospace Engineering
Volume 34, Issue 4
Abstract
In the current research, an active-flow control scheme characterized by leeward slot jet over a circular cylinder was experimentally investigated to manipulate the vortex shedding from the cylindrical test model and stabilize the unsteady cylinder wake. A slot installed on the leeward stagnation point of the circular cylinder was used to implement steady jet. The experimental research was conducted in a wind tunnel at a subcritical Reynolds number (Re) of . The high-speed particle image velocimetry (PIV) system was utilized to visualize and analyze the vortical structures in the wakes of the baseline and controlled cylinders to evaluate the effectiveness and mechanism of the active slot jet control technique with various equivalent blowing momentum coefficient . Experimental results reveal that the slot generates a pair of symmetric jet vortices that interact with the sheared layer from the cylinder wall, which thus modifies effectively the flow features in the cylinder wake. With such dynamic interactions, the unsteady separation flows rolled up from the upper and lower surfaces of the test model are elongated and push the alternating vortex shedding downstream. Owing to the convection between the jet vortices and the cylindrical wake vortical structures, a modal transition from asymmetric to symmetric of the cylinder wake was realized. It is also shown that the flow characteristics such as Reynolds shear stress and turbulent kinetic energy are controlled to be quite low. Furthermore, a linear stability analysis is carried out to imply that the stability characteristics in the flow field behind the cylindrical model can be manipulated by the blowing slot jet.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request. The items are as follows:
1.
All original data for cases with which ranges from 0 to 0.1600.
Acknowledgments
This research work was funded by the National Natural Science Foundation of China (51978222 and 51722805), the Fundamental Research Funds for the Central Universities (HIT.BRETIV 201803 and AUGA5710001020) and the Fundamental Research Funds of Shenzhen Science and Technology Plan (JCYJ20180306172123896).
References
Akansu, Y. E., and E. Fırat. 2010. “Control of flow around a square prism by slot jet injection from the rear surface.” Exp. Therm Fluid Sci. 34 (7): 906–914. https://doi.org/10.1016/j.expthermflusci.2010.02.007.
Berkooz, G., P. Holmes, and J. L. Lumley. 1993. “The proper orthogonal decomposition in the analysis of turbulent flows.” Annu. Rev. Fluid Mech. 25 (1): 539–575. https://doi.org/10.1146/annurev.fl.25.010193.002543.
Broučková, Z., and Z. Trávníček. 2019. “Intermittent round jet controlled by lateral pulse-modulated synthetic jets.” J. Visualization 22 (3): 459–476. https://doi.org/10.1007/s12650-019-00550-z.
Cattafesta, L. N., and M. Sheplak. 2011. “Actuators for active flow control.” Annu. Rev. Fluid Mech. 43 (1): 247–272. https://doi.org/10.1146/annurev-fluid-122109-160634.
Chan, A. S., P. A. Dewey, A. J. Jameson, C. L. Liang, and A. Smits. 2011. “Vortex suppression and drag reduction in the wake of counter-rotating cylinders.” J. Fluid Mech. 679 (May): 343–382. https://doi.org/10.1017/jfm.2011.134.
Chen, G. B., L. Q. Zhang, W. L. Chen, D. L. Gao, W. H. Yang, and H. Li. 2019a. “Self-suction-and-jet control in flow regime and unsteady force for a single box girder.” J. Bridge Eng. 24 (8): 04019072. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001437.
Chen, W. L., D. L. Gao, W. Y. Yuan, H. Li, and H. Hu. 2015. “Passive jet control of flow around a circular cylinder.” Exp. Fluids 56 (11): 201. https://doi.org/10.1007/s00348-015-2077-5.
Chen, W. L., Y. W. Huang, D. L. Gao, H. Meng, G. B. Chen, and H. Li. 2019b. “Passive suction jet control of flow regime around a rectangular column with a low side ratio.” Exp. Therm Fluid Sci. 109 (Dec): 109815. https://doi.org/10.1016/j.expthermflusci.2019.05.004.
Chen, W. L., H. Li, and H. Hu. 2014. “An experimental study on a suction flow control method to reduce the unsteadiness of the wind loads acting on a circular cylinder.” Exp. Fluids 55 (4): 1707. https://doi.org/10.1007/s00348-014-1707-7.
Chen, W. L., X. W. Min, D. L. Gao, A. X. Guo, and H. Li. 2018. “Experimental investigation of aerodynamic forces and flow structures of bionic cylinders based on harbor seal vibrissa.” Exp. Therm Fluid Sci. 99 (Dec): 169–180. https://doi.org/10.1016/j.expthermflusci.2018.07.033.
Chen, W. L., D. B. Xin, F. Xu, H. Li, J. P. Ou, and H. Hu. 2013. “Suppression of vortex-induced vibration of a circular cylinder using suction-based flow control.” J. Fluids Struct. 42 (Oct): 25–39. https://doi.org/10.1016/j.jfluidstructs.2013.05.009.
Corke, T. C., C. L. Enloe, and S. P. Wilkinson. 2010. “Dielectric barrier discharge plasma actuators for flow control.” Annu. Rev. Fluid Mech. 42 (1): 505–529. https://doi.org/10.1146/annurev-fluid-121108-145550.
Çuhadaroğlu, B., Y. E. Akansu, and A. Ö. Turhal. 2007. “An experimental study on the effects of uniform injection through one perforated surface of a square cylinder on some aerodynamic parameters.” Exp. Therm Fluid Sci. 31 (8): 909–915. https://doi.org/10.1016/j.expthermflusci.2006.09.006.
Deri, E., M. Braza, E. Cid, S. Cazin, D. Michaelis, and C. Degouet. 2014. “Investigation of the three-dimensional turbulent near-wake structure past a flat plate by tomographic PIV at high Reynolds number.” J. Fluids Struct. 47 (May): 21–30. https://doi.org/10.1016/j.jfluidstructs.2012.11.005.
Feng, L. H., and J. J. Wang. 2010. “Circular cylinder vortex-synchronization control with a synthetic jet positioned at the rear stagnation point.” J. Fluid Mech. 662(Aug): 232. https://doi.org/10.1017/S0022112010003174.
Feng, L. H., J. J. Wang, and C. Pan. 2011. “Proper orthogonal decomposition analysis of vortex dynamics of a circular cylinder under synthetic jet control.” Phys. Fluids 23 (1): 014106. https://doi.org/10.1063/1.3540679.
Gao, D. L., G. B. Chen, W. L. Chen, Y. W. Huang, and H. Li. 2019a. “Active control of circular cylinder flow with windward suction and leeward blowing.” Exp. Fluids 60 (2): 1–17. https://doi.org/10.1007/s00348-018-2676-z.
Gao, D. L., G. B. Chen, W. L. Chen, Y. W. Huang, and H. Li. 2019b. “Effects of steady wake-jets on subcritical cylinder flow.” Exp. Therm Fluid Sci. 102 (Apr): 575–588. https://doi.org/10.1016/j.expthermflusci.2018.12.026.
Gao, D. L., W. L. Chen, H. Li, and H. Hu. 2017a. “Flow around a circular cylinder with slit.” Exp. Therm Fluid Sci. 82 (Apr): 287–301. https://doi.org/10.1016/j.expthermflusci.2016.11.025.
Gao, D. L., W. L. Chen, H. Li, and H. Hu. 2017b. “Flow around a slotted circular cylinder at various angles of attack.” Exp. Fluids 58 (10): 132. https://doi.org/10.1007/s00348-017-2417-8.
Greco, C. S., G. Paolillo, T. Astarita, and G. Cardone. 2020. “The von Kármán street behind a circular cylinder: Flow control through synthetic jet placed at the rear stagnation point.” J. Fluid Mech. 901 (Sep): A39. https://doi.org/10.1017/jfm.2020.427.
Konstantinidis, E., S. Balabani, and M. Yianneskis. 2007. “Bimodal vortex shedding in a perturbed cylinder wake.” Phys. Fluids 19 (1): 11701. https://doi.org/10.1063/1.2432152.
Lecordier, J. C., L. Hamma, and P. Paranthoen. 1991. “The control of vortex shedding behind heated circular cylinders at low Reynolds numbers.” Exp. Fluids 10 (4): 224–229. https://doi.org/10.1007/BF00190392.
Lim, H. C., and S. J. Lee. 2003. “PIV measurements of near wake behind a U-grooved cylinder.” J. Fluids Struct. 18 (1): 119–130. https://doi.org/10.1016/S0889-9746(03)00086-0.
Lumley, J. L. 1981. “Coherent structures in turbulence.” In Proc., Transition and Turbulence of a Symposium Conducted by the Mathematics Research Center, 215–242. Madison, WI: Univ. of Wisconsin-Madison. https://doi.org/10.1016/B978-0-12-493240-1.50017-X.
Meyer, K. E., J. M. Pedersen, and O. Özcan. 2007. “A turbulent jet in crossflow analysed with proper orthogonal decomposition.” J. Fluid Mech. 583 (Jul): 199–227. https://doi.org/10.1017/S0022112007006143.
Orszag, S. A. 1971. “Accurate solution of the Orr–Sommerfeld stability equation.” J. Fluid Mech. 50 (4): 689–703. https://doi.org/10.1017/S0022112071002842.
Park, J., A. Derrandji-Aouat, B. Wu, S. Nishio, and E. Jacquin. 2008. “Uncertainty analysis: Particle imaging velocimetry.” In Proc., ITTC Recommended Procedures and Guidelines, International Towing Tank Conf. Tokyo: Japan Society of Naval Architects and Ocean Engineers.
Perrin, R., M. Braza, E. Cid, S. Cazin, A. Barthet, A. Sevrain, C. Mockett, and F. Thiele. 2007. “Obtaining phase averaged turbulence properties in the near wake of a circular cylinder at high Reynolds number using POD.” Exp. Fluids 43 (2–3): 341–355. https://doi.org/10.1007/s00348-007-0347-6.
Posdziech, O., and R. Grundmann. 2001. “Electromagnetic control of seawater flow around circular cylinders.” Eur. J. Mech. B. Fluids 20 (2): 255–274. https://doi.org/10.1016/S0997-7546(00)01111-0.
Prothin, S., H. Djeridi, and J. Y. Billard. 2014. “Coherent and turbulent process analysis of the effects of a longitudinal vortex on boundary layer detachment on a NACA0015 foil.” J. Fluids Struct. 47 (May): 2–20. https://doi.org/10.1016/j.jfluidstructs.2013.08.014.
Schäfer, F., M. Breuer, and F. Durst. 2009. “The dynamics of the transitional flow over a backward-facing step.” J. Fluid Mech. 623 (May): 85–119. https://doi.org/10.1017/S0022112008005235.
Sirovich, L. 1987. “Turbulence and the dynamics of coherent structures. I. Coherent structures.” Q. Appl. Math. 45 (3): 561–571. https://doi.org/10.1090/qam/910462.
Triantafyllou, G. S., M. S. Triantafyllou, and C. Chryssostomidis. 1986. “On the formation of vortex streets behind stationary cylinders.” J. Fluid Mech. 170 (1): 461–477. https://doi.org/10.1017/S0022112086000976.
Van Oudheusden, B. W., F. Scarano, N. P. Van Hinsberg, and D. W. Watt. 2005. “Phase-resolved characterization of vortex shedding in the near wake of a square-section cylinder at incidence.” Exp. Fluids 39 (1): 86–98. https://doi.org/10.1007/s00348-005-0985-5.
Zhou, J., R. J. Adrian, S. Balachandar, and T. M. Kendall. 1999. “Mechanisms for generating coherent packets of hairpin vortices in channel flow.” J. Fluid Mech. 387 (1): 353–396. https://doi.org/10.1017/S002211209900467X.
Zhou, X., J. Wang, and Y. Hu. 2019. “Experimental investigation on the flow around a circular cylinder with upstream splitter plate.” J. Visualization 22 (May): 683–695. https://doi.org/10.1007/s12650-019-00560-x.
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© 2021 American Society of Civil Engineers.
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Received: Aug 6, 2020
Accepted: Feb 18, 2021
Published online: Apr 20, 2021
Published in print: Jul 1, 2021
Discussion open until: Sep 20, 2021
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