Abstract
Two-dimensional numerical investigations on the flow characteristics past a circular cylinder with a jet injection at the rear stagnation point are performed. Transient, incompressible, laminar, and isothermal flow governing equations are solved with finite volume method. Numerical simulations have been carried out at a Reynolds number of 150 with different injection ratios (IR) ranging from 0.5 to 7. Time evolutions of the coefficients of drag and lift, and streamline patterns are plotted. Three different flow pattern ranges are observed, namely wake dominant (IR\(\,=\,\)0–1.5), transition (IR\(\,=\,\)1.5–2.5) and jet dominant (IR > 2.5), and they are characterized by the combined effects of vortex shedding, undulation and jet dominant phenomena appearing in the flow downstream. It is also found that \(C_{\mathrm{d}}\) decreases slightly with the injection ratio up to 1.5, after that it monotonically increases with the injection ratio. The similar incremental trend is observed in the Strouhal number variation with IR up to 1.5; then, it increases almost linearly till IR\(\,=\,\)4. When IR is greater than 4, there is a sudden drop in the Strouhal number value equal to zero and it remains constant after that for all the IR values considered in this study. The power spectral density of \(C_{\mathrm{l} }\) indicates that the dominant frequency is present for the lower IR up to 4 and that no dominant frequency appears in the higher injection ratio range of 5–7 due to a complete suppression of the vortex shedding behind the cylinder by a dominant jet mechanism.
Similar content being viewed by others
Abbreviations
- IR:
-
Injection ratio
- D :
-
Cylinder diameter
- \(u_{\mathrm{j}}\) :
-
Jet velocity
- \(U_{\infty }\) :
-
Free stream velocity
- \(L_{\mathrm{u}}\) :
-
Upstream domain length
- \(L_{\mathrm{d}}\) :
-
Downstream domain length
- H :
-
Domain height
- f :
-
Shedding frequency
- St:
-
Strouhal number
- \(C_{\mathrm{l}}\) :
-
Lift coefficient
- \(C_{\mathrm{d}}\) :
-
Drag coefficient
- WDR:
-
Wake dominated range
- TR:
-
Transition range
- JDR:
-
Jet dominated range
- PSD:
-
Power spectral density
- x :
-
Axial direction
- y :
-
Transverse direction
- u :
-
Velocity in the x-direction
- v :
-
Velocity in the y-direction
- p :
-
Pressure
- \(\nu \) :
-
Kinematic viscosity
- \(\rho \) :
-
Density
- t :
-
Time
- \(t_{\mathrm{c}}\) :
-
Time taken for repeating one half cycle
References
Ong, M.C.; Utnes, T.; Holmedal, L.E.; Myrhaug, D.; Pettersen, B.: Numerical simulation of flow around a smooth circular cylinder at very high Reynolds numbers. J. Mar. Struct. 22(2), 142–153 (2009)
Gillies, E.A.: Low dimensional control of the circular cylinder wake. J. Fluid Mech. 371, 157–178 (1998)
Wille, R.: Generation of oscillatory flows. In: Naudascher, E. (ed.) Flow-Induced Structural Vibration, pp. 1–16. Springer, Berlin (1974)
Williamson, C.H.K.; Govardhan, R.: Vortex-induced vibrations. Annu. Rev. Fluid Mech. 36, 413–455 (2004)
You, D.; Choi, H.; Choi, M.R.; Kang, S.H.: Control of flow induced noise behind a circular cylinder using splitter plates. AIAA J. 36(11), 1961–1967 (1998)
Karthikeyan, S.; Senthilkumar, S.: Control of vortex shedding behind a circular cylinder using a combination of slot and control plates. In: Saha, A., Das, D., Srivastava, R., Panigrahi, P., Muralidhar, K. (eds.) Fluid Mechanics and Fluid Power—Contemporary Research. Lecture Notes in Mechanical EngineeringSpringer, New Delhi (2017)
Roshko, A.: Perspectives on bluff body aerodynamics. J. Wind Eng. Ind. Aerodyn. 49, 79–100 (1993)
Unal, M.F.; Rockwell, D.: On vortex formation from a cylinder, part II: control by splitter-plate interference. J. Fluid Mech. 190, 491–512 (1988)
Oertel Jr., H.: Wakes behind blunt bodies. Annu. Rev. Fluid Mech. 22, 539–564 (1990)
Pier, B.: On the frequency selection of finite-amplitude vortex shedding in the cylinder wake. J. Fluid Mech. 458, 407–417 (2002)
Chomaz, J.M.: Global instability in spatially developing flows: non-normality and non-linearity. Annu. Rev. Fluid Mech. 37, 367–392 (2005)
Hwang, Y.; Choi, H.: Control of absolute instability by basic flow modification in a parallel wake at low Reynolds number. J. Fluid Mech. 560, 465–475 (2006)
Hwang, Y.; Choi, H.: Sensitivity of global instability of spatially developing flow in weakly and fully nonlinear regimes. Phys. Fluids 20, 071073 (2008)
Marais, C.; Godoy-Diana, R.; Barkley, D.; Wesfreid, J.E.: Convective instability in inhomogeneous media: impulse response in the subcritical cylinder wake. Phys. Fluids 23, 014104 (2011)
Baek, S.; Sung, H.J.: Numerical simulation of the flow behind a rotary oscillating circular cylinder. Phys. Fluids 10, 869 (1998)
Cetiner, O.; Rockwell, D.: Stream-wise oscillations of a cylinder in a steady current. Part 1: locked-on states of vortex formation and loading. J. Fluid Mech. 427, 128 (2001)
Blackburn, H.; Henderson, R.: A study of two-dimensional flow past an oscillating cylinder. J. Fluid Mech. 385, 255–286 (1999)
Artana, G.; Sosa, R.; Moreau, E.; Touchard, G.: Control of the near-wake flow around a circular cylinder with electro-hydrodynamic actuators. Exp. Fluids 35(6), 580–588 (2003)
Zhdanov, V.L.; Isaev, S.A.; Niemann, H.J.: Control of the near wake of a circular cylinder in blowing out of low-head jets. J. Eng. Phys. Thermophys. 74(5), 1100–1103 (2001)
Fransson, J.H.M.; Konieczny, P.; Alfredson, P.H.: Flow around a porous cylinder subject to continuous suction or blowing. J. Fluid Struct. 19, 1031–1048 (2004)
Bhattacharyya, S.; Maiti, D.K.; Dhinakaran, S.: Influence of buoyancy on vortex shedding and heat transfer from a square cylinder in proximity to a wall. Numer. Heat Transf. Part A Appl. 50(6), 585–606 (2006)
Strykowski, P.J.; Sreenivasan, K.R.: On the formation and suppression of vortex shedding at low Reynolds numbers. J. Fluid Mech. 218, 71–107 (1990)
Mittal, S.; Raghuvanshi, A.: Control of vortex shedding behind circular cylinder for flows at low Reynolds numbers. Int. J. Numer. Methods Fluids 35, 421–447 (2001)
Kuo, C.H.; Chiou, L.C.; Chen, C.C.: Wake flow pattern modified by small control cylinders at low Reynolds number. J. Fluids Struct. 23, 938–956 (2007)
Kuo, C.H.; Chen, C.C.: Passive control of wake flow by two small control cylinders at Reynolds number 80. J. Fluids Struct. 25, 1021–1028 (2009)
Igarashi, T.: Drag reduction of a square prism by flow control using a small rod. J. Wind Eng. Ind. Aerodyn. 69–71, 141–153 (1997)
Sarioglu, M.; Akansu, Y.E.; Yavuz, T.: Control of flow around square cylinders at incidence by using a rod. AIAA J. 43(7), 1419–1426 (2005)
Choi, H.; Jeon, W.P.; Kim, J.: Control of flow over a bluff body. Annu. Rev. Fluid Mech. 40, 113–139 (2008)
Mathelin, L.; Bataille, F.; Lallemand, A.: The effect of uniform blowing on the flow past a circular cylinder. ASME. J. Fluids Eng. 124(2), 452–464 (2002)
Ladd, D.; Park, D.; Hendricks, E.; Nosseir, N.: Active control of oscillatory lift forces on a circular cylinder. In: AIAA Shear Flow Conference. AIAA 93-3277, July 6–9, Orlando, FL, USA (1993)
Apacoglu, B.; Paksoy, A.; Aradag, S.: Effects of air blowing on turbulent flow over a circular cylinder. J. Therm. Sci. Technol. 32(2), 107–119 (2012)
Saha, A.K.; Ankit, S.: Suppression of vortex shedding around a square cylinder using blowing. Sadhana 40(3), 769–785 (2015)
Sen, U.; Mukhopadhyay, A.; Sen, S.: Effects of fluid injection on dynamics of flow past a circular cylinder. Eur. J. Mech. B Fluids 61, 187–199 (2017)
Huang, R.F.; Hsu, C.M.; Chen, Y.T.: Modulating flow and aerodynamic characteristics of a square cylinder in cross flow using a rear jet injection. Phys. Fluids 29, 015103 (2017). https://doi.org/10.1063/1.4972982
Gao, D.L.; Chen, W.L.; Li, H.; Hu, H.: Flow around a circular cylinder with slit. Exp. Therm. Fluid Sci. 82, 287–301 (2017)
Pantokratoras, A.: Laminar flow across an unbounded square cylinder with suction or injection. Z. Angew. Math. Phys. 68(1), 1 (2017)
Versteeg, H.K.; Malalasekera, W.: An Introduction to Computational Fluid Dynamics: The Finite Volume Method. Pearson Prentice Hall, London (2007)
Braza, M.; Chassaing, P.; Minh, H.H.: Numerical study and physical analysis of the pressure and velocity fields in the near wake of a circular cylinder. J. Fluid Mech. 165, 79–130 (1986)
Lima E Silva, A.L.F.; Silveira-Neto, A.; Damasceno, J.J.R.: Numerical simulation of two-dimensional flows over a circular cylinder using the immersed boundary method. J. Comput. Phys. 189, 351–370 (2003)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Karthikeyan, S., Senthilkumar, S., Kannan, B.T. et al. Numerical Analysis on Effect of Jet Injection on Vortex Shedding for Flow Over a Circular Cylinder. Arab J Sci Eng 44, 1475–1488 (2019). https://doi.org/10.1007/s13369-018-3588-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13369-018-3588-1