Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Large eddy simulation using a curvilinear coordinate system for the flow around a square cylinder

  • Published : 2002.04.25
⟨ Previous Next ⟩

Abstract

The application of Large Eddy Simulation (LES) in a curvilinear coordinate system to the flow around a square cylinder is presented. In order to obtain sufficient resolution near the side of the cylinder, we use an O-type grid. Even with a curvilinear coordinate system, it is difficult to avoid the numerical oscillation arising in high-Reynolds-number flows past a bluff body, without using an extremely fine grid used. An upwind scheme has the effect of removing the numerical oscillations, but, it is accompanied by numerical dissipation that is a kind of an additional sub-grid scale effect. Firstly, we investigate the effect of numerical dissipation on the computational results in a case where turbulent dissipation is removed in order to clarify the differences between the effect of numerical dissipation. Next, the applicability and the limitations of the present method, which combine the dynamic SGS model with acceptable numerical dissipation, are discussed.

Keywords

References

  1. Jordan, S.A. and Ragab, S.A. (1998), " Large eddy simulation of the near wake of a circular cylinder", J. Fluids Eng., 120, 243-252. https://doi.org/10.1115/1.2820640
  2. Kajisima, T. (1993), "Higher-order finite difference methods for wall-bounded incompressible flows", Proc 5th Int. Symp. Comp. Fluid, 414-419.
  3. Lilly, D.K. (1992), "A proposed modification of the germano subgrid-scale closure method", Phys. Fluids, A.4, 633-635.
  4. Lyn, D.A. (1989), "Phase-averaged turbulence measurements in the separated shear flow around square cylinder", Proc. 23rd. Cong. Int. Ass. Hydraulic Research, Ottawa, Canada, A85-A92.
  5. Lee, B.E. (1988), "Some observation of the effect of aspect ratio on the influence of turbulence on the drag of rectangular cylinders", The International Colloquium on Bluff Body Aerodynamics and its Applications, Kyoto.
  6. McLean, I. and Gartshore, I. (1992), "Spanwise correlations of pressure on a rigid square cylinder", J. Wind Eng. Ind. Aerod. 41, 779.
  7. Mizota, T., et al. (1988), "Aerodynamic characteristics of fundamental structures (Part 1)", J. of Wind Eng., 36, 49 (in Japanese).
  8. Okajima, A. (1983), "Flow around a rectangular cylinder with a section of various width/height ratios", J. of Wind Eng., 17, 1-13 (in Japanese).
  9. Ohtsuki, Y. (1978), "Wind tunnel experiments on aerodynamic forces and pressure distributions of rectangular cylinders in a uniform flow", Proc. 5th Symp. on Wind Effects on Structures, Tokyo Japan.
  10. Rodi. W. (1998), "Large-eddy simulations of the flow past bluff bodies: state-of-the Art", JSME Int. J., 41, 361- 373. https://doi.org/10.1299/jsmeb.41.361
  11. Rodi, W., Ferziger, J.H., Breuer, M. and Pourquie, M. (1997), "Status of large-eddy simulation; results of a workshop", J. Fluids Eng., 119, 248-262. https://doi.org/10.1115/1.2819128

Cited by

  1. APPLICATION AND DEVELOPMENT OF LES TO THE PROBLEM OF THE VORTEX INDUCED OSCILLATION OF HIGHRISE RC TOWER vol.70, pp.592, 2005, https://doi.org/10.3130/aijs.70.35_3
  2. LES analysis of unsteady characteristics of conical vortex on a flat roof vol.96, pp.10-11, 2008, https://doi.org/10.1016/j.jweia.2008.02.021
  3. Large-eddy simulations of flow past a square cylinder using structured and unstructured grids vol.137, 2016, https://doi.org/10.1016/j.compfluid.2016.07.013
  4. LES ANALYSIS FOR A CONICAL VORTEX AND UNSTEADY PRESSURE CHARACTERISTICS ON A FLAT ROOF vol.72, pp.621, 2007, https://doi.org/10.3130/aijs.72.9_6
  5. Large eddy simulation of turbulent flows around bluff bodies in overlaid grid systems vol.96, pp.10-11, 2008, https://doi.org/10.1016/j.jweia.2008.02.065
  6. LES ANALYSIS OF TURBULENCE EFFECTS ON AEROELASTIC INSTABILITY OF PRISMS vol.68, pp.563, 2003, https://doi.org/10.3130/aijs.68.67_1
  7. Shear effects on flows past a square cylinder with rounded corners at Re=2.2×10 4 vol.174, 2018, https://doi.org/10.1016/j.jweia.2017.12.025
  8. LES ANALYSIS OF THE VORTEX INDUCED OSCILLATION OF TWO DIMENSIONAL CIRCULAR CYLINDER IN HOMOGENEOUS TURBULENT FLOW vol.68, pp.569, 2003, https://doi.org/10.3130/aijs.68.23_3
  9. LES analysis on aeroelastic instability of prisms in turbulent flow vol.91, pp.12, 2002, https://doi.org/10.1016/j.jweia.2003.09.032
  10. LES ANALYSIS OF VORTEX INDUCED OSCILLATION OF A THREE DIMENTIONAL CIRCULAR CYLINDER : Change of vortex formation for free end and the effects of rocking oscillation mode vol.69, pp.581, 2002, https://doi.org/10.3130/aijs.69.7_5
  11. LES ANALYSIS FOR MAXIMUM NEGATIVE PRESSURE ON AN ELLIPTIC STRUCTURE vol.75, pp.652, 2010, https://doi.org/10.3130/aijs.75.1081
  12. LES OF LOCAL SEVERE SUCTION ON SIDE FACE OF A THREE-DIMENSIONAL SQUARE CYLINDER vol.78, pp.694, 2002, https://doi.org/10.3130/aijs.78.2065
  13. Investigation approaches to quantify wind-induced load and response of tall buildings: A review vol.62, pp.None, 2002, https://doi.org/10.1016/j.scs.2020.102376