Results 11 to 20 of about 121,753 (310)
Direct Numerical Simulation of Laminar-Turbulent Transition on Grids with Local Refinement
Учёные записки Казанского университета: Серия Физико-математические науки, 2017 This paper considers a method of building composite grids with local refinement for direct numerical simulation of flows in a channel with transverse cylindrical rib at moderate Reynolds numbers.
D.I. Okhotnikov
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Direct Numerical Simulations of Capillary Wave Turbulence [PDF]
Physical Review Letters, 2014 This work presents Direct Numerical Simulations of capillary wave turbulence solving the full 3D Navier Stokes equations of a two-phase flow. When the interface is locally forced at large scales, a statistical stationary state appears after few forcing periods. Smaller wave scales are generated by nonlinear interactions, and the wave height spectrum is
Deike, Luc +3 more
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Direct Numerical Simulation of Water Droplets in Turbulent Flow
Fluids, 2020 Details on the fall speeds of raindrops are essential in both applications and natural events, such as rain-rate retrieval and soil erosion. Here, we examine the influence of turbulence on the terminal velocity of two water drops of different sizes.
Weibo Ren +2 more
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Direct numerical simulation of turbulence at lower costs [PDF]
, 1995 Direct Numerical Simulation (DNS) is the most accurate, but also the most expensive, way of computing turbulent flow. To cut the costs of DNS we consider a family of second-order, explicit one-leg time-integration methods and look for the method with the
Veldman, A.E.P. +5 more
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Direct Numerical Simulation of Active-Controlled Impinging Jets
Journal of Fluid Science and Technology, 2009 In order to improve the heat transfer on the wall, impinging jets are used in various industrial applications, and have been investigated experimentally and numerically so far.
Koichi TSUJIMOTO +3 more
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Direct numerical simulation of turbulence over two-dimensional waves
AIP Advances, 2020 Knowledge of turbulent flows over non-flat surfaces is of major practical interest in diverse applications. Significant work continues to be reported in the roughness regime at high Reynolds numbers where the cumulative effect of surface undulations on ...
Balaji Jayaraman, Saadbin Khan
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Direct numerical simulation of 'short' laminar separation bubbles with turbulent reattachment [PDF]
, 2000 Direct numerical simulation of the incompressible Navier–Stokes equations is used to study flows where laminar boundary-layer separation is followed by turbulent reattachment forming a closed region known as a laminar separation bubble.
Alam, M., Sandham, N.D.
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Direct numerical simulation for modification of sinusoidal riblets
Journal of Fluid Science and Technology, 2016 This paper proposes a new riblet configuration. A traditional sinusoidal riblet was modified with the aim of reducing pressure drag. The height of the side wall in the newly configured riblet is lowered toward the node of the sinusoidal curve to reduce ...
Kie OKABAYASHI
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Direct numerical simulation of vortex ring evolution from the laminar to the early turbulent regime [PDF]
, 2008 Direct numerical simulation is used to study the temporal development of single vortex rings at various Reynolds numbers and core thicknesses. Qualitative differences between the evolution of thin- and thick-core rings are observed leading to a ...
Thomas, T.G. +2 more
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Entropy splitting for high-order numerical simulation of compressible turbulence [PDF]
, 2002 A stable high-order numerical scheme for direct numerical simulation (DNS) of shock-free compressible turbulence is presented. The method is applicable to general geometries. It contains no upwinding, artificial dissipation, or filtering.
Li, Q. +5 more
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