Numerical simulations of a wind-induced vibrating square cylinder within turbulent boundary layer

Kataoka, Hiroto

doi:10.1016/j.jweia.2008.02.061

Cited by 40 publications

(21 citation statements)

References 15 publications

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“…The velocity fluctuations at the inlet are obtained by using pseudo-periodic boundary conditions (Kataoka 2008). The velocity components at the inflow boundary (Kataoka 2008) are given by…”

Section: The Subgrid-scale Modelmentioning

confidence: 99%

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Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model

Jiao

2011

Boundary-Layer Meteorol

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A novel dynamic mixing length (DML) subgrid-scale (SGS) model is proposed to improve the large-eddy simulations of the wind field and contaminant dispersion around a group of buildings. Wind field and contaminant dispersion in two kinds of building array geometries are simulated using the model, with wind-tunnel experimental data used to validate the model. The relative errors in the lateral profiles of the streamwise mean velocities behind the sixth row of the buildings of the staggered obstacle array and the aligned obstacle array at the half height of the building are 15 and 9%, respectively. The DML velocity fluctuations in the staggered and aligned obstacle arrays are in agreement with those of the experiment. The results indicate that the DML model can make a more accurate prediction of the mean velocity and velocity fluctuations. The DML model is highly suitable for the simulation of multi-scale turbulent flow in urban canyons, of high Reynolds number turbulent flow and of complex turbulent flow.

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“…The velocity fluctuations at the inlet are obtained by using pseudo-periodic boundary conditions (Kataoka 2008). The velocity components at the inflow boundary (Kataoka 2008) are given by…”

Section: The Subgrid-scale Modelmentioning

confidence: 99%

“…where the subscripts denote the values at the inlet (inlet) and downstream (recy) planes and is a time-averaged value; φ(θ) is the damping function (Kataoka 2008). Zero gradient is used at the transversal surfaces, the outlet surface and the upper surfaces of the computational domain.…”

Section: The Subgrid-scale Modelmentioning

confidence: 99%

Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model

Jiao

2011

Boundary-Layer Meteorol

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“…This is similar to the common practice employed in wind tunnel tests to simulate the ABL flows. Kataoka [27] simplified Lund's rescaling method using constant boundary layer thickness and generalized similarity laws. Recently, Jiang et al [28] applied the recycling method by Kataoka [27] to generate inflow conditions for the non-isothermal boundary layer flows.…”

Section: Introductionmentioning

confidence: 99%

“…Kataoka [27] simplified Lund's rescaling method using constant boundary layer thickness and generalized similarity laws. Recently, Jiang et al [28] applied the recycling method by Kataoka [27] to generate inflow conditions for the non-isothermal boundary layer flows. The coupling of the inflow and the recycling plane is usually referred to as pseudo-periodic or semi-periodic boundary conditions, which can be integrated into the main domain in a concurrent library generation fashion.…”

Section: Introductionmentioning

confidence: 99%

Inflow turbulence generation methods with large eddy simulation for wind effects on tall buildings

Yan

2015

Computers & Fluids

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“…This method was further developed by introducing different technique to determine the rescaling parameters (Nozawa and Tamura, 2002). Based on those auxiliary methods, wind loads Tamura, 2002 and and aeroelastic responses (Kataoka and Mizuno, 2002;Kataoka, 2008) of building structures in the ABL were numerically investigated. Although the inflow turbulence generated by the auxiliary methods has definite physical meaning, it is time consuming, and the statistical characteristics of Engineering Applications of Computational Fluid Mechanics Vol.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Inflow Boundary Condition in Large Eddy Simulation of Flow Around Tall Building

Zheng

Zhang

2012

Engineering Applications of Computational Fluid Mechanics

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ABSTRACT:In order to predict wind loads on building structures in the atmospheric boundary layer (ABL) employing large eddy simulation (LES), the primary task would be to generate proper turbulent inflow boundary condition (IBC), which is one of the main influence factors for LES. The objective of this paper is to present a simple IBC generation method to improve the LES predictions for building loads in the ABL using the commercial code Fluent. The proposed method is a combination of equilibrium IBC expressions for Reynolds averaged NavierStokes (RANS) equations with the random flow generation (RFG) procedure, which is used in Fluent. The equilibrium IBC is used for the solution of steady-state RANS to obtain information for the RFG procedure. In order to verify the efficiency of the present method, the simulation of wind flow field around a single tall building was carried out by adopting the above computing process. Detailed comparisons between the simulated and the experimental results show that the present method was verified as being applicable to a certain extent in predicting wind loads on buildings.

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Numerical simulations of a wind-induced vibrating square cylinder within turbulent boundary layer

Cited by 40 publications

References 15 publications

Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model

Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model

Inflow turbulence generation methods with large eddy simulation for wind effects on tall buildings

Improvement of Inflow Boundary Condition in Large Eddy Simulation of Flow Around Tall Building

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