Numerical Simulation and Investigation of Flow Patterns Around Three Side-by-Side Cylinders Arranged in Line with an Oscillating Central Cylinder
DOI:
https://doi.org/10.37934/cfdl.17.3.95108Keywords:
CFD, Flow induced vibration, Bluff body, FSI, Reynolds NumberAbstract
A flow past three cylinders arranged in a vertical row in a side-by-side configuration in which both side cylinders were kept fixed and an oscillatory movement provided to the middle cylinder was simulated. This particular configured setup holds significant importance in engineering and presents a compelling resemblance to numerous real-world scenarios especially in electricity production using oscillatory motion. In the present study, free-stream flow across three side-by-side cylinders with a transversely oscillating middle cylinder, was simulated using the commercial CFD software tool ANSYS 2021 R2 at a low Reynolds number (Re) = 100, with non-dimensional cylinder spacing (s/d) = 2;. For the middle cylinder, non-dimensional amplitude (amplitude ratio), A/d = 0.5 and a frequency ratio of fe/fo=0.8, 1 and 1.2 were considered (fe/fo, where fe is the cylinder oscillation frequency and fo is the corresponding vortex shedding frequency for stationary cylinders). In this study, re-meshing was done using the dynamic mesh technique, and pre-defined oscillatory motion was provided with the help of an additionally hooked User Defined Function (UDF) in the commercial CFD software tool. The objective of the present study was to investigate the effect of governing parameters on flow physics and wake nature, as well as the effect of the flow transition on engineering parameters. The interesting finding to report here that for oscillation frequency fe/fo= 1 there exist synchronous flow confirmed from wake diagram having comparatively more drag with that of other two higher fe/fo= 1.2 and lower oscillation frequency ratio fe/fo= 0.8 for cylinder spacing (s/d) = 2.
Downloads
References
Kang, Sangmo. "Numerical study on laminar flow over three side-by-side cylinders." KSME international journal 18 (2004): 1869-1879. https://doi.org/10.1007/BF02984335 DOI: https://doi.org/10.1007/BF02984335
Kumar, Shashi Ranjan, Atul Sharma, and Amit Agrawal. "Simulation of flow around a row of square cylinders." Journal of Fluid Mechanics 606 (2008): 369-397. https://doi.org/10.1017/S0022112008001924 DOI: https://doi.org/10.1017/S0022112008001924
Guilmineau, Emmanuel, and P. Queutey. "A numerical simulation of vortex shedding from an oscillating circular cylinder." Journal of Fluids and Structures 16, no. 6 (2002): 773-794. https://doi.org/10.1006/jfls.2002.0449 DOI: https://doi.org/10.1006/jfls.2002.0449
Lee, Dae Sung, Man Yeong Ha, Hyun Sik Yoon, and S. Balachandar. "A numerical study on the flow patterns of two oscillating cylinders." Journal of fluids and structures 25, no. 2 (2009): 263-283. https://doi.org/10.1016/j.jfluidstructs.2008.06.011 DOI: https://doi.org/10.1016/j.jfluidstructs.2008.06.011
Sewatkar, Chandrashekhar Manikrao, Atul Sharma, and Amit Agrawal. "Simulation of flow across a row of transversely oscillating square cylinders." Journal of fluid mechanics 680 (2011): 361-397. https://doi.org/10.1017/jfm.2011.167 DOI: https://doi.org/10.1017/jfm.2011.167
Sewatkar, C. M., Atul Sharma, and Amit Agrawal. "On the effect of Reynolds number for flow around a row of square cylinders." Physics of Fluids 21, no. 8 (2009). https://doi.org/10.1063/1.3210769 DOI: https://doi.org/10.1063/1.3210769
Sewatkar, Chandrashekhar Manikrao, Atul Sharma, and Amit Agrawal. "On energy transfer in flow around a row of transversely oscillating square cylinders at low Reynolds number." Journal of fluids and structures 31 (2012): 1-17. https://doi.org/10.1016/j.jfluidstructs.2012.03.002 DOI: https://doi.org/10.1016/j.jfluidstructs.2012.03.002
Koopmann, G. H. "The vortex wakes of vibrating cylinders at low Reynolds numbers." Journal of Fluid Mechanics 28, no. 3 (1967): 501-512. https://doi.org/10.1017/S0022112067002253 DOI: https://doi.org/10.1017/S0022112067002253
Ongoren, A., and D. Rockwell. "Flow structure from an oscillating cylinder Part 1. Mechanisms of phase shift and recovery in the near wake." Journal of fluid Mechanics 191 (1988): 197-223. https://doi.org/10.1017/S0022112088001569 DOI: https://doi.org/10.1017/S0022112088001569
Wiliamson, C. H. "Vortex dynamics in the cylinder wake." (1996). https://doi.org/10.1146/annurev.fluid.28.1.477 DOI: https://doi.org/10.1146/annurev.fluid.28.1.477
Mittal, S., and V. Kumar. "Flow-induced vibrations of a light circular cylinder at reynolds numbers 103TO 104." Journal of sound and vibration 245, no. 5 (2001): 923-946. https://doi.org/10.1006/jsvi.2001.3612 DOI: https://doi.org/10.1006/jsvi.2001.3612
Bao, Yan, Dai Zhou, and Jiahuang Tu. "Flow interference between a stationary cylinder and an elastically mounted cylinder arranged in proximity." Journal of fluids and structures 27, no. 8 (2011): 1425-1446. https://doi.org/10.1016/j.jfluidstructs.2011.08.008 DOI: https://doi.org/10.1016/j.jfluidstructs.2011.08.008
Williamson, Charles HK, and Anatol Roshko. "Vortex formation in the wake of an oscillating cylinder." Journal of fluids and structures 2, no. 4 (1988): 355-381. https://doi.org/10.1016/S0889-9746(88)90058-8 DOI: https://doi.org/10.1016/S0889-9746(88)90058-8
Chen, Yongxin, Kamal Djidjeli, and Zheng-Tong Xie. "Large eddy simulation of flow past stationary and oscillating square cylinders." Journal of Fluids and Structures 97 (2020): 103107. https://doi.org/10.1016/j.jfluidstructs.2020.103107 DOI: https://doi.org/10.1016/j.jfluidstructs.2020.103107
Dutta, Debasish, Hans Bihs, and Mohammad Saud Afzal. "Computational Fluid Dynamics modelling of hydrodynamic characteristics of oscillatory flow past a square cylinder using the level set method." Ocean Engineering 253 (2022): 111211. https://doi.org/10.1016/j.oceaneng.2022.111211 DOI: https://doi.org/10.1016/j.oceaneng.2022.111211
Placzek, Antoine, Jean-François Sigrist, and Aziz Hamdouni. "Numerical simulation of an oscillating cylinder in a cross-flow at low Reynolds number: Forced and free oscillations." Computers & Fluids 38, no. 1 (2009): 80-100. https://doi.org/10.1016/j.compfluid.2008.01.007 DOI: https://doi.org/10.1016/j.compfluid.2008.01.007
Sudhakar, Y., and S. Vengadesan. "Vortex shedding characteristics of a circular cylinder with an oscillating wake splitter plate." Computers & Fluids 53 (2012): 40-52. https://doi.org/10.1016/j.compfluid.2011.09.003 DOI: https://doi.org/10.1016/j.compfluid.2011.09.003
Rajpoot, Rajendra S., K. Anirudh, and S. Dhinakaran. "Numerical investigation of unsteady flow across tandem square cylinders near a moving wall at Re= 100." Case Studies in Thermal Engineering 26 (2021): 101042. https://doi.org/10.1016/j.csite.2021.101042 DOI: https://doi.org/10.1016/j.csite.2021.101042
Yogeswaran, V., Subhankar Sen, and Sanjay Mittal. "Free vibrations of an elliptic cylinder at low Reynolds numbers." Journal of Fluids and Structures 51 (2014): 55-67. https://doi.org/10.1016/j.jfluidstructs.2014.07.012 DOI: https://doi.org/10.1016/j.jfluidstructs.2014.07.012
Qiu, Tao, Yan Zhao, Xiaoqing Du, and Weiqun Lin. "Vortex-induced vibration of two tandem square cylinders with different restraint conditions." Ocean Engineering 273 (2023): 113946. https://doi.org/10.1016/j.oceaneng.2023.113946 DOI: https://doi.org/10.1016/j.oceaneng.2023.113946
Zhao, Ming, Liang Cheng, and Tongming Zhou. "Numerical simulation of vortex-induced vibration of a square cylinder at a low Reynolds number." Physics of Fluids 25, no. 2 (2013). https://doi.org/10.1063/1.4792351 DOI: https://doi.org/10.1063/1.4792351
Ishak, Izuan Amin, Nurshafinaz Maruai, Fadhilah Mohd Sakri, Rahmah Mahmudin, Nor Afzanizam Samiran, Syabillah Sulaiman, Shaiful Fadzil Zainal Abidin, and Nik Normunira Mat Hassan. "Numerical Analysis on the Crosswind Influence Around a Generic Train Moving on Different Bridge Configurations." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 89, no. 2 (2022): 76-98. https://doi.org/10.37934/arfmts.89.2.7698 DOI: https://doi.org/10.37934/arfmts.89.2.7698
Hassim, Muhammad Ridhwaan, Mohd Azan Mohammed Sapardi, Nur Marissa Kamarul Baharin, Syed Noh Syed Abu Bakar, Muhammad Abdullah, and Khairul Affendy Mohd Nor. "CFD Modelling of Wake-Induced Vibration At Low Reynolds Number." CFD Letters 13, no. 11 (2021): 53-64. https://doi.org/10.37934/cfdl.13.11.5364 DOI: https://doi.org/10.37934/cfdl.13.11.5364
Blackburn, Hugh M., and Ron D. Henderson. "A study of two-dimensional flow past an oscillating cylinder." Journal of Fluid Mechanics 385 (1999): 255-286. https://doi.org/10.1017/S0022112099004309 DOI: https://doi.org/10.1017/S0022112099004309
Jamal, Muhamad Hafiz Md, and Azlin Mohd Azmi. "Flow Past Two Interlocking SquaresCylinder at Low Reynolds Number." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 44, no. 1 (2018): 140-148.