The turbulent wake of a square prism with wavy faces

- Journal title : Wind and Structures
- Volume 23, Issue 2, 2016, pp.127-142
- Publisher : Techno-Press
- DOI : 10.12989/was.2016.23.2.127

Title & Authors

The turbulent wake of a square prism with wavy faces

Lin, Y.F.; Bai, H.L.; Alam, Md. Mahbub;

Lin, Y.F.; Bai, H.L.; Alam, Md. Mahbub;

Abstract

Aerodynamic effects, such as drag force and flow-induced vibration (FIV), on civil engineering structures can be minimized by optimally modifying the structure shape. This work investigates the turbulent wake of a square prism with its faces modified into a sinusoidal wave along the spanwise direction using three-dimensional large eddy simulation (LES) and particle image velocimetry (PIV) techniques at Reynolds number

Keywords

square prism;sinusoidal wavy face;passive control;

Language

English

Cited by

References

1.

Bearman, P.W. and Owen, J.C. (1998), "Reduction of bluff-body drag and suppression of vortex shedding by the introduction of wavy separation lines", J. Fluid Struct., 12(1), 123-130.

2.

Bruno, L., Fransos, D., Coste, N. and Bosco, A. (2010), "3D flow around a rectangular cylinder: A computational study", J. Wind Eng. Ind. Aerod., 98(6-7), 263-276.

3.

Choi, H.C., Jeon, W.P. and Kim, J.S. (2008), "Control of flow over a bluff body", Annu. Rev. Fluid Mech., 40, 113-139.

4.

Darekar, R.M. and Sherwin, S.J. (2001), "Flow past a square-section cylinder with a wavy stagnation face", J. Fluid Mech., 426, 263-295.

5.

Gu, Z.F. and Sun, T.F. (1999), "On interference between two circular cylinders in staggered arrangement at high subcritical Reynolds numbers", J. Wind Eng. Ind. Aerod., 80(3), 287-309.

6.

Hunt, J.C.R., Wray, A.A. and Moin, P. (1998), "Eddies, streams, and convergence zones in turbulent flows", Center for Turbulence Research, Annu. Res. Briefs, 193-202.

7.

Kuroda, M., Tamura, T. and Suzuki, M. (2007), "Applicability of LES to the turbulent wake of a rectangular cylinder - Comparison with PIV data", J. Wind Eng. Ind. Aerod., 95(9-11), 1242-1258.

8.

Lam, K. and Lin, Y.F. (2008), "Large eddy simulation of flow around wavy cylinders at a subcritical Reynolds number", Int. J. Heat Fluid Fl., 29(4), 1071-1088.

9.

Lam, K. and Lin, Y.F. (2009), "Effects of wavelength and amplitude of a wavy cylinder in cross-flow at low Reynolds numbers", J. Fluid Mech., 620, 195-220.

10.

Lam, K., Lin, Y.F., Zou, L. and Liu, Y. (2010), "Experimental study and large eddy simulation of turbulent flow around tube bundles composed of wavy and circular cylinders", Int. J. Heat Fluid Fl., 31(1), 32-44.

11.

Lam, K., Lin, Y.F., Zou, L. and Liu, Y. (2012), "Numerical study of flow patterns and force characteristics for square and rectangular cylinders with wavy surfaces", J. Fluid Struct., 28, 359-377.

12.

Lam, K., Wang, F.H. and So, R.M.C. (2004), "Three-dimensional nature of vortices in the near wake of a wavy cylinder", J. Fluid Struct., 19(6), 815-833.

13.

Liang, C. and Papadakis, G. (2007), "Large eddy simulation of pulsating flow over a circular cylinder at subcritical Reynolds number", Comput. Fluids, 36(2), 299-312.

14.

Lyn, D.A., Einav, S., Rodi, W. and Park, J.H. (1995), "A laser-Doppler velocimetry study of ensemble-averaged characteristics of the turbulent near wake of a square cylinder", J. Fluid Mech., 304, 285-319.

15.

Mankbadi, M.R. and Georgiadis, N.J. (2015), "Examination of parameters affecting large-eddy simulation of flow past a square cylinder", AIAA J., 53(6), 1706-1712.

16.

Mannini, C., Soda, A. and Schewe, G. (2010), "Unsteady RANS modelling of flow past a rectangular cylinder: Investigation of Reynolds number effects", Comput. Fluids, 39(9), 1609-1624.

17.

New, T.H., Shi, S. and Liu, Y. (2013), "Cylinder-wall interference effects on finite-length wavy cylinders at subcritical Reynolds number flows", Exp. Fluids, 54(10), 1601.

18.

New, T.H., Shi, S. and Liu, Y. (2015), "On the flow behaviour of confined finite-length wavy cylinders", J. Fluid Struct., 54, 281-296.

19.

Noda, H. and Nakayama, A. (2003), "Reproducibility of flow past two-dimensional rectangular cylinders in a homogeneous turbulent flow by LES", J. Wind Eng. Ind. Aerod., 91(1-2), 265-278.

20.

Norberg, C. (1993), "Flow around rectangular cylinders: pressure forces and wake frequencies", J. Wind Eng. Ind. Aerod., 49(1-3), 187-196.

21.

Oka, S. and Ishihara, T. (2009), "Numerical study of aerodynamic characteristics of a square prism in a uniform flow", J. Wind Eng. Ind. Aerod., 97(11-12), 548-559.