On the Investigation of Flow around the Square Cylinder Based on Different LES Models

Zhe Liu

doi:10.4028/www.scientific.net/AMR.594-597.2676

Paper Titles

Solving the Deflection Equations of Thick Plate under Concentrated Load
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Analysis about Efficiency of Floor Isolation System Consisting of RFPS System and Dish Spring
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Numerical Study on Mechanical Response of Steel Wire Wound Reinforced Rubber Flexible Pipe under Internal Pressure
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Mechanical Analysis and Stability Design of Extrusion Forming Machine of Thorn Pile
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On the Investigation of Flow around the Square Cylinder Based on Different LES Models
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A Numerical Study on Shock Wave Characteristics for the Underwater Explosion
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The Boundary Negative Slippage of Fluid Flowing in Hydrophilic Micro-Channels
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Study on Collision Damage Behavior of Ship
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Bifurcation Analysis in a Lotka-Volterra Model with Delay
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597On the Investigation of Flow around the Square...

On the Investigation of Flow around the Square Cylinder Based on Different LES Models

Abstract:

Although the conventional Reynolds-averaged Navier–Stokes (RANS) model has been widely applied in the industrial and engineering field, it is worthwhile to study whether these models are suitable to investigate the flow filed varying with the time. With the development of turbulence models, the unsteady Reynolds-averaged Navier–Stokes (URANS) model, detached eddy simulation (DES) and large eddy simulation (LES) compensate the disadvantage of RANS model. This paper mainly presents the theory of standard LES model, LES dynamic model and wall-adapting local eddy-viscosity (WALE) LES model. And the square cylinder is selected as the research target to study the flow characteristics around it at Reynolds number 13,000. The influence of different LES models on the flow field around the square cylinder is compared.