Results 21 to 30 of about 563,653 (367)
Parameterizing convective organization
Journal of Advances in Modeling Earth Systems, 2011 Lateral mixing parameters in buoyancy-driven deep convection schemes are among the most sensitive and important unknowns in atmosphere models. Unfortunately, there is not a true optimum value for plume mixing rate, but rather a dilemma or tradeoff ...
Brian Earle Mapes, Richard Brian Neale
doaj +1 more source
Granular Convection in Microgravity [PDF]
Physical Review Letters, 2013 We investigate the role of gravity on convection in a dense granular shear flow. Using a microgravity modified Taylor-Couette shear cell under the conditions of parabolic flight microgravity, we demonstrate experimentally that secondary, convective-like flows in a sheared granular material are close to zero in microgravity and enhanced under high ...
Patrick Michel +7 more
openaire +7 more sources
Unstable Density-Driven Flow in Fractured Porous Media: The Fractured Elder Problem
Fluids, 2019 The Elder problem is one of the well-known examples of an unstable density-driven flow (DDF) and solute transport in porous media. The goal of this research is to investigate the influence of fracture networks on this benchmark problem due to the great ...
Paiman Shafabakhsh +3 more
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Discretization of the 2D Convection–Diffusion Equation Using Discrete Exterior Calculus [PDF]
Journal of Applied and Computational Mechanics, 2020 While the Discrete Exterior Calculus (DEC) discretization of the diffusive term of the Transport Equation is well understood, the DEC discretization of the convective term, as well as its stabilization, is an ongoing area of research.
Marco A. Noguez +3 more
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Formation of Large-Scale Semi-Organized Structures in Turbulent Convection [PDF]
Phys.Rev. E66 (2002) 066305, 2002 A new mean-field theory of turbulent convection is developed. This theory predicts the convective wind instability in a shear-free turbulent convection which causes formation of large-scale semi-organized fluid motions in the form of cells or rolls. Spatial characteristics of these motions, such as the minimum size of the growing perturbations and the ...
arxiv +1 more source
Atmosphere, 2018 The semi-enclosed Mediterranean basin, surrounded by high mountains, is placed in a favorable location for cyclonic storms development. Most of these are extratropical cyclones of baroclinic and orographic origin, but occasionally, some low pressure ...
Francesco Ragone +4 more
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Mesoscale Convective Systems in a Superparameterized E3SM Simulation at High Resolution
Journal of Advances in Modeling Earth Systems, 2022 Accurately representing mesoscale convective systems (MCSs) is crucial to simulating the energy and water cycles in global climate models. Using a novel MCS identification and tracking algorithm applied to observations and model simulations, we evaluate ...
Guangxing Lin +4 more
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Advanced Materials Interfaces, EarlyView., 2023 This review discusses the use of Surface‐Enhanced Raman Spectroscopy (SERS) combined with Artificial Intelligence (AI) for detecting antimicrobial resistance (AMR). Various SERS studies used with AI techniques, including machine learning and deep learning, are analyzed for their advantages and limitations.
Zakarya Al‐Shaebi +4 more
wiley +1 more source
Convection effect on two-dimensional dynamics in the nonlocal reaction-diffusion model [PDF]
Компьютерные исследования и моделирование, 2011 Pattern formation described by the scalar Fisher-Kolmogorov-Petrovsky-Piscounov equation with nonlocal competition loses and convection linear on coordinates is considered numerically.
Aleksandr Vasilievich Shapovalov +2 more
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Shell model for stratified convection: implications for the solar convective conundrum [PDF]
arXiv, 2022 We extend the notion of a shell model to stratified systems, and propose one that represents stratified, nonmagnetic, nonrotating convection at low Mach number. Motivated by profiles of background stratification that support convection in stars such as the Sun, we study numerical solutions corresponding to a highly unstable layer above a mildly ...
arxiv