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Estimation of the functional form of subgrid-scale schemes using ensemble-based data assimilation: a simple model experiment
(Wiley, 2016-10-02)
Oceanic and atmospheric global numerical models represent explicitly the large‐scale dynamics while the smaller‐scale processes are not resolved, so that their effects in the large‐scale dynamics are included through ...
Estimation of the functional form of subgrid-scale parametrizations using ensemble-based data assimilation : a simplemodel experiment
(Royal Meteorological Society, 2016)
Oceanic and atmospheric global numerical models represent explicitly the large-scale dynamics while the smaller-scale processes are not resolved, so that their effects in the large-scale dynamics are included through ...
Lagrangian scheme to model subgrid-scale mixing and spreading in heterogeneous porous media
(American Geophysical Union, 2017)
Small-scale heterogeneity of permeability controls spreading, dilution, and mixing of solute
plumes at large scale. However, conventional numerical simulations of solute transport are unable to resolve
scales of heterogeneity ...
Offline parameter estimation using EnKF and maximum likelihood error covariance estimates: application to a subgrid-scale orography parametrization
(John Wiley & Sons Ltd, 2015-01)
Recent work has shown that the parameters controlling parametrizations of the physical processes in climate models can be estimated from observations using filtering techniques. In this article, we propose an offline ...
Spectral analysis of the turbulent energy cascade and the development of a novel nonlinear subgrid-scale model for large eddy simulation.Análise spectral da cascata de energia turbulenta e desenvolvimento de um novo modelo submalha não linear para simulação das grandes escalas.
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Mecânica, 2019)
Gradient subgrid-scale model for relativistic MHD large-eddy simulations
(American Physical Society, 2020-03-15)
Magnetohydrodynamics (MHD) turbulence is likely to play an important role in several astrophysical scenarios, where the magnetic Reynolds is very large. Numerically, these cases can be studied efficiently by means of ...
Discontinuous subgrid formulations for transport problems
(ElsevierBrasilNúcleo Interdisciplinar de Dinâmica dos Fluidos, 2019)
Inuence Of Different Subgrid Scale Models In Les Of Supersonic Jet Flows
(American Institute of Aeronautics and Astronautics Inc, AIAA, 2016)
Model selection: Using information measures from ordinal symbolic analysis to select model sub-grid scale parameterizations
(American Meteorological Society, 2017-06-30)
The use of information measures for model selection in geophysical models with subgrid parameterizations is examined.} Although the resolved dynamical equations of atmospheric or oceanic global numerical models are well ...
The effect of subfilter-scale physics on regularization models
(Springer/Plenum Publishers, 2011-09)
The subfilter-scale (SFS) physics of regularization models are investigated to understand the regularizations' performance as SFS models. Suppression of spectrally local SFS interactions and conservation of small-scale ...