Results 41 to 50 of about 26,008 (308)
Vertical transport of pollutants by shallow cumuli from large eddy simulations [PDF]
Atmospheric Chemistry and Physics, 2012 This study investigates the vertical transport of a passive tracer in a shallow cumulus boundary layer using large eddy simulations. The tracer source is at the surface in one case, and in the inversion layer in the other case.
G. Chen, H. Xue, G. Feingold, X. Zhou
doaj +1 more source
Statistical ensemble of large-eddy simulations [PDF]
Journal of Fluid Mechanics, 2002 A statistical ensemble of large-eddy simulations (LES) is run simultaneously for the same flow. The information provided by the different large-scale velocity fields is used in an ensemble-averaged version of the dynamic model. This produces local model parameters that only depend on the statistical properties of the flow.
Carati, Daniele +2 more
openaire +2 more sources
Large-eddy simulation of multi-component compressible turbulent flows using high resolution methods [PDF]
, 2008 The ability of a finite volume Godunov and a semi-Lagrangian large-eddy simulation (LES) method to predict shock induced turbulent mixing has been examined through simulations of the half-height experiment [Holder and Barton.
Thornber, Ben +2 more
core +1 more source
Evaluation of a Buoyancy and Shear Based Mixing Length for a Turbulence Scheme
Frontiers in Earth Science, 2017 We present a new diagnostic mixing length for a turbulence scheme based on a prognostic equation for the turbulence kinetic energy. The formulation adds a local vertical wind shear term to the non-local buoyancy-based mixing length currently used in the ...
Quentin Rodier +3 more
doaj +1 more source
Journal of Marine Science and Engineering, 2021 We present results of Large-eddy simulations (LES) modeling of steady sheet and unsteady cloud cavitation on a two-dimensional hydrofoil which are validated against Particle image velocimetry (PIV) data.
Elizaveta Ivashchenko +4 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers +19 more
wiley +1 more source
Spectral-Element Simulation of the Turbulent Flow in an Urban Environment
Applied Sciences, 2021 The mean flow and turbulence statistics of the flow through a simplified urban environment, which is an active research area in order to improve the knowledge of turbulent flow in cities, is investigated.
Maxime Stuck +5 more
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Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
A Statistical Model for Isolated Convective Precipitation Events
Journal of Advances in Modeling Earth Systems, 2019 We present a highly simplified model to describe the diurnal evolution of a convective cloud field in idealized large eddy simulations. The life cycles of individual precipitation events are detected by a storm tracking algorithm which records the ...
Christopher Moseley +2 more
doaj +1 more source
Large eddy simulations of wind loads on an external floating-roof tank
Engineering Applications of Computational Fluid Mechanics, 2020 Wind load of an external floating-roof tank is analyzed using large eddy simulation (LES). First, the governing equations and a LES solution procedure employing FLUENT software are presented. Subsequently, using two benchmark tank models, the accuracy of
Xu Sun +4 more
doaj +1 more source