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Advances in Mechanical Engineering, 2015 Lattice Boltzmann method combined with large eddy simulation is developed in the article to simulate fluid flow at high Reynolds numbers. A subgrid model is used as a large eddy simulation model in the numerical simulation for high Reynolds flow.
Haiqing Si, Yan Shi
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A new dynamic subgrid-scale model using artificial neural network for compressible flow
Theoretical and Applied Mechanics Letters, 2022 The subgrid-scale (SGS) kinetic energy has been used to predict the SGS stress in compressible flow and it was resolved through the SGS kinetic energy transport equation in past studies.
Han Qi +3 more
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Analysing the Contributions in Moment Equations of Reynolds Stress Models of Convection with Numerical Simulations [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractWe discuss how 3D numerical simulations can be used to analyse the different contributions within dynamical equations of non-local Reynolds stress models of convection.
Kupka, F., Muthsam, H.
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Experimental and Numerical Investigation of Flow under Sluice Gates [PDF]
, 2012 The flow characteristics upstream and downstream of sluice gates are studied experimentally and numerically using Reynolds averaged Navier-Stokes two-dimensional simulations with a volume of fluid method.
Belaud, Gilles, Cassan, Ludovic
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Large-eddy simulation and wall modelling of turbulent channel flow [PDF]
, 2009 We report large-eddy simulation (LES) of turbulent channel flow. This LES neither resolves nor partially resolves the near-wall region. Instead, we develop a special near-wall subgrid-scale (SGS) model based on wall-parallel filtering and wall-normal ...
Chung, D., Pullin, D. I.
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The structure of the solution obtained with Reynolds-stress-transport models at the free-stream edges of turbulent flows [PDF]
, 2002 The behavior of Reynolds-stress-transport models at the free-stream edges of turbulent flows is investigated. Current turbulent-diffusion models are found to produce propagative (possibly weak) solutions of the same type as those reported earlier by ...
Cazalbou, Jean-Bernard +1 more
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Geometric evolution of the Reynolds stress tensor [PDF]
, 2012 14 pagesInternational audienceThe dynamics of the Reynolds stress tensor for turbulent flows is described with an evolution equation coupling both geometric effects and turbulent source terms.
Gavrilyuk, Sergey,, Gouin, Henri
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Modelling Pressure-Diffuion Process in the Reynolds Stress Transport Equation
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2004 Modeling the pressure-diffusion process is discussed to improve the prediction of turbulent recirculating flows by a second moment closure. Since the recent DNS research of a turbulent recirculating flow suggeted that the pressure-diffusion process of the turbulence energy was significant in the recirculating region, the present study focuses on the ...
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EnergiesLarge-eddy simulation (LES) and Reynolds-Averaged Navier–Stokes (RANS) equations were used to study incompressible flow and heat transfer in a U-duct with a high-aspect-ratio trapezoidal cross section.
Kenny S. Hu, Tom I-P. Shih
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Computational fluid dynamics study on the efficiency of straight-bladed vertical axis wind turbine
International Journal of ThermofluidsThe present study treats numerically the performance of a straight-bladed, vertical axis, Darieus wind turbine. A two-dimensional (2D), Unsteady Reynolds-averaged Navier–Stokes (URANS) simulations were performed out by the solver ANSYS/FLUENT using the ...
Hemiche Iddou +2 more
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