Large eddy simulation of the subcritical flow past a circular cylinder: numerical and modeling aspects

Breuer, M.

doi:10.1002/(sici)1097-0363(19981215)28:9<1281::aid-fld759>3.0.co;2-#

Cited by 344 publications

(221 citation statements)

References 23 publications

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“…The predicted length of the recirculation bubble (where v x < 0) is slightly shorter than in both DNS data sets, which might be an effect of the dissipative nature of the applied QUICK spatial discretization scheme. Breuer [30], in his LES study, reported shortened recirculation lengths when differencing schemes were employed that were more dissipative than central differencing schemes. He showed that in LES the influence of the discretization scheme on the recirculation length is in fact much stronger than that of the sub-grid scale model.…”

Section: Flow and Heat Transfer Around A Solid Cylinder At Re = 3900mentioning

confidence: 99%

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T-RANS Simulations of Subcritical Flow with Heat Transfer Past a Circular Cylinder Surrounded by a Thin Porous Layer

Sobera

Kleijn

2008

Flow Turbulence Combust

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We study flow and heat transfer to a cylinder in cross flow at Re = 3,900-80,000 by means of three-dimensional transient RANS (T-RANS) simulations, employing an RNG k − turbulence model. Both the case of a bare solid cylinder and that of a solid cylinder surrounded at some fixed distance by a thin porous layer have been studied. The latter configuration is a standard test geometry for measuring the insulating and protective performance of garments. In this geometry, the flow in the space between the solid cylinder and the porous layer is laminar but periodic, whereas the outer flow is transitional and characterized by vortex shedding in the wake of the cylinder. The results from the T-RANS simulations are validated against data from Direct Numerical Simulations and experiments. It is found that T-RANS is very well suited for simulating this type of flow. The transient nature of the flow underneath the porous layer is well reproduced, as well as the influence of vortex shedding on the heat transfer in the downstream stagnation zone. T-RANS results are found to be in much better agreement with DNS and experimental data than results from steady-state RANS.

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Section: Flow and Heat Transfer Around A Solid Cylinder At Re = 3900mentioning

confidence: 99%

“…: Ong & Wallace [29] Exp. : Lourenco & Shih [30] Exp. : Sobera and coworkers [8] x/D υx u ∞ which is ascribed to the size of the computational domain in the transverse (y-) direction, which was only 8D c and considerably smaller than the 20D c used by Tremblay.…”

Section: Flow and Heat Transfer Around A Solid Cylinder At Re = 3900mentioning

confidence: 99%

T-RANS Simulations of Subcritical Flow with Heat Transfer Past a Circular Cylinder Surrounded by a Thin Porous Layer

Sobera

Kleijn

2008

Flow Turbulence Combust

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“…(10b), and it is transported by convection and diffusion into the flow according to Eq. (11). The vortex method uses discrete vortices to model the vorticity, whose transport at each time step is carried out in a sequence using a Lagrangian approach.…”

Section: Vortex Methodsmentioning

confidence: 95%

“…Pereira et al (2004) have used this approach to simulate the flow around turbomachinery blade rows. Numerical investigations using LES have been carried out by Breuer (1998) and by Kravchenko and Moin (2000), for the subcritical Reynolds number Re=3.910 3 . Breuer (2000) obtained fairly good results in the near wake using Smagorinsky and dynamic subgrid-scale (SGS) models for the subcritical Re=1.410 5 , whereas the simulations of Catalano et al (2003) relate LES with a wall-layer model for the nearwall region of the cylinder.…”

Section: Introductionmentioning

confidence: 99%

Subgrid-Scale Modeling of Turbulent Flow Around Circular Cylinder by Mesh-Free Vortex Method

Mustto

Bodstein

2011

Engineering Applications of Computational Fluid Mechanics

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This paper proposes a numerical model for the two-dimensional, incompressible, unsteady, turbulent flow applied to an impulsively started flow around a circular cylinder in the Reynolds number range from 110 4 to 610 5 . A Lagrangian mesh-free vortex method blended with the Large Eddy Simulation theory is employed to simulate the large-scale motion, whereas the turbulent subgrid-scale motion is modeled with an eddy viscosity coefficient, expressed in terms of the Second-Order Velocity Structure Function. The filtered vorticity field is calculated by a superposition of Lamb vortices that are generated near the body surface such that circulation is conserved and the no-slip boundary condition is explicitly imposed at a finite number of points on the cylinder. The no-penetration boundary condition is satisfied exactly on the entire cylinder surface through the application of the circle theorem. The vorticity transport equation is solved using the convective-diffusive operator-splitting algorithm, where vorticity diffusion is simulated with the random walk method and the convective motion of the vortices is integrated in time using the second-order Adams-Bashforth scheme. Numerous simulations for high Reynolds numbers are carried out to determine the numerical parameters of the model. Results for the drag coefficient and the Strouhal number as a function of the Reynolds number present satisfactory agreement with other results from the literature.

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“…증되었다 (Ahmed and Bays-muchmore, 1992;Nebres et al, 1993;Chyu and Rockwell, 1996;Lam et al, 2004a;Lam et al, 2004b;Lee and Nguyen, 2007;Lam and Lin, 2008 (Unal and Rockwell, 1988;Prasad and Williamson, 1997;Norberg, 1998, Dong et al, 2006 (Breuer, 1998;Breuer, 2000;Jordan and Ragab, 1998;Jordan, 2002). (Keefe, 1962;Bishop and Hassan, 1964;White, 1974;Moeller, 1982;Moeller and Leehey, 1984;Norberg, 1987;Tadrist et al, 1990;Gopalkrishnan 1993 있다 (Unal and Rockwell, 1988;Prasad and Williamson, 1997;Norberg, 1998, Dong et al, 2006.…”

Section: 서 론mentioning

confidence: 99%

Reynolds number effects on flow over twisted offshore structure with drag reduction and vortex suppression

Jung¹,

Yoon²

2015

Journal of Ocean Engineering and Technology

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Large eddy simulation of the subcritical flow past a circular cylinder: numerical and modeling aspects

Cited by 344 publications

References 23 publications

T-RANS Simulations of Subcritical Flow with Heat Transfer Past a Circular Cylinder Surrounded by a Thin Porous Layer

T-RANS Simulations of Subcritical Flow with Heat Transfer Past a Circular Cylinder Surrounded by a Thin Porous Layer

Subgrid-Scale Modeling of Turbulent Flow Around Circular Cylinder by Mesh-Free Vortex Method

Reynolds number effects on flow over twisted offshore structure with drag reduction and vortex suppression

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