Results 11 to 20 of about 10,221 (259)
Modelling of vertical axis wind turbine using large eddy simulations
Results in Engineering, 2023 This paper presents an investigation into the behaviour of a Savonius wind turbine using Large Eddy Simulation (LES) through Computational Fluid Dynamics (CFD).
Daniel Gemayel +3 more
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Gyrokinetic large eddy simulations [PDF]
Physics of Plasmas, 2011 The large eddy simulation approach is adapted to the study of plasma microturbulence in a fully three-dimensional gyrokinetic system. Ion temperature gradient driven turbulence is studied with the GENE code for both a standard resolution and a reduced resolution with a model for the sub-grid scale turbulence. A simple dissipative model for representing
Morel, Pierre +6 more
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Applied large eddy simulation [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009 Large eddy simulation (LES) is now seen more and more as a viable alternative to current industrial practice, usually based on problem-specific Reynolds-averaged Navier–Stokes (RANS) methods. Access to detailed flow physics is attractive to industry, especially in an environment in which computer modelling is bound to play an ever increasing role ...
Tucker, Paul G., Lardeau, Sylvain
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Accelerating Large‐Eddy Simulations of Clouds With Tensor Processing Units
Journal of Advances in Modeling Earth Systems, 2023 Clouds, especially low clouds, are crucial for regulating Earth's energy balance and mediating the response of the climate system to changes in greenhouse gas concentrations.
Sheide Chammas +5 more
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Linking Large‐Eddy Simulations to Local Cloud Observations
Journal of Advances in Modeling Earth Systems, 2020 In order to enhance our understanding of clouds and their microphysical processes, it is crucial to exploit both observations and models. Local observations from ground‐based remote sensing sites provide detailed information on clouds, but as they are ...
Vera Schemann +5 more
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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
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Journal of Advances in Modeling Earth Systems, 2020 Most submesoscale motions—fronts, eddies, filaments, and even large internal waves—are sufficiently rapidly rotating and stratified as to be strongly influenced by potential vorticity dynamics.
Abigail S. Bodner, Baylor Fox‐Kemper
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A Library of Large‐Eddy Simulations Forced by Global Climate Models
Journal of Advances in Modeling Earth Systems, 2022 Advances in high‐performance computing have enabled large‐eddy simulations (LES) of turbulence, convection, and clouds. However, their potential to improve parameterizations in global climate models (GCMs) is only beginning to be harnessed, with ...
Zhaoyi Shen +4 more
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Results in Applied Mathematics, 2020 We consider the zeroth order model of the family of approximate deconvolution models of Stolz and Adams. We propose and analyze fully discrete schemes using discontinuous finite elements. Optimal error estimates are derived.
Monika Neda, Béatrice Rivière
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Multi-model analysis of terrestrial carbon cycles in Japan: limitations and implications of model calibration using eddy flux observations [PDF]
Biogeosciences, 2010 Terrestrial biosphere models show large differences when simulating carbon and water cycles, and reducing these differences is a priority for developing more accurate estimates of the condition of terrestrial ecosystems and future climate change.
K. Ichii +10 more
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