Results 51 to 60 of about 156,290 (295)
Journal of Advances in Modeling Earth Systems, 2022 In large‐eddy simulations, subgrid‐scale (SGS) processes are parameterized as a function of filtered grid‐scale variables. First‐order, algebraic SGS models are based on the eddy‐viscosity assumption, which does not always hold for turbulence.
Yu Cheng +10 more
doaj +1 more source
Synthetic Turbulence, Fractal Interpolation and Large-Eddy Simulation
, 2003 Fractal Interpolation has been proposed in the literature as an efficient way to construct closure models for the numerical solution of coarse-grained Navier-Stokes equations.
A. Monin +14 more
core +1 more source
Defence Science Journal, 2010 Large eddy simulation (LES) is an emerging technique for obtaining an approximation to turbulent flow fields It is an improvement over the widely prevalent practice of obtaining means of turbulent flows when the flow has large scale, low frequency, unsteadiness An introduction to the method, its general formulation, and the more common modelling for ...
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy +6 more
wiley +1 more source
Large-Eddy Simulation of Wakes of Waked Wind Turbines
Energies, 2022 The wake dynamics of a wind turbine are influenced by the atmospheric turbulence and the wake of its upwind turbine. In this work, we investigate the wake characteristics of a waked wind turbine for four different downwind spacings and three different ...
Xiaohao Liu +5 more
doaj +1 more source
Transitions in large eddy simulation of box turbulence
, 2017 One promising decomposition of turbulent dynamics is that into building blocks such as equilibrium and periodic solutions and orbits connecting these. While the numerical approximation of such building blocks is feasible for flows in small domains and at
Kawahara, Genta +2 more
core +1 more source
Anisotropic eddy-viscosity concept for strongly detached unsteady flows [PDF]
, 2007 The accurate prediction of the flow physics around bodies at high Reynolds number is a challenge in aerodynamics nowadays. In the context of turbulent flow modeling, recent advances like large eddy simulation (LES) and hybrid methods [detached eddy ...
Bouhadji A. +10 more
core +2 more sources
Large-Eddy Simulation of Contrails [PDF]
Journal of the Atmospheric Sciences, 1998 Numerical simulations of contrails have been performed to investigate the role of various external parameters and physical processes in the life cycle of contrails. The general idea underlying the model is that of a largeeddy model. The model explicitly represents the large-scale three-dimensional motions (10-m grid resolution), while small-scale ...
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Zonal k-l Based Large Eddy Simulations [PDF]
41st Aerospace Sciences Meeting and Exhibit, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tucker, P. G., Davidson, L.
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Advanced Functional Materials, EarlyView.Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan +8 more
wiley +1 more source