Results 31 to 40 of about 259 (134)
Sparse nonlinear models of chaotic electroconvection
Convection is a fundamental fluid transport phenomenon, where the large-scale motion of a fluid is driven, for example, by a thermal gradient or an electric potential. Modelling convection has given rise to the development of chaos theory and the reduced-
Yifei Guan +2 more
doaj +1 more source
How Does Ice Shell Geometry Shape Ocean Dynamics on Icy Moons?
Abstract A poleward‐thinning ice shell can drive circulation in the subsurface oceans of icy moons by imposing a meridional temperature gradient–colder at the equator than the pole–through the freezing point suppression due to pressure. This temperature gradient sets a buoyancy gradient, whose sign depends on the thermal expansion coefficient ...
Yixiao Zhang +2 more
wiley +1 more source
Turbulent superstructures in Rayleigh-Bénard convection
Turbulent fluids in nature, counter-intuitively, can exhibit large-scale order that persists for long times. Pandey et al. numerically characterize the formation of these superstructures in turbulent convection by separating the fast motions at small ...
Ambrish Pandey +2 more
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On the Cell Broadening of Mesoscale Cellular Convection in a Well‐Mixed Boundary Layer
Abstract Understanding what controls the horizontal scale of mesoscale cellular convection is central to explaining cloud self‐organization and its radiative impacts. Using a hierarchy of large‐eddy simulations, we investigate cell broadening in a well‐mixed boundary layer by isolating the roles of radiation, cloud microphysics, and water vapor.
Xiaoran Ouyang +5 more
wiley +1 more source
Diffusion‐Free Scaling in Rotating Spherical Rayleigh‐Bénard Convection
Direct numerical simulations are employed to reveal three distinctly different flow regions in rotating spherical Rayleigh‐Bénard convection. In the high‐latitude region I vertical (parallel to the axis of rotation) convective columns are generated ...
Guiquan Wang +4 more
doaj +1 more source
ABSTRACT The thermal performance of two triply periodic minimal surface (TPMS) thermal Energy Storage modules, Diamond and Primitive, was investigated using computational fluid dynamics. The melting and solidification behaviors, as well as the charging and discharging characteristics, of the TPMS Energy Storage units were studied for various flow rates.
Tong Su +4 more
wiley +1 more source
Study on the Instability of Two-Phase Flow in the Heat-Absorbing Tube of Trough Solar Collector
The Marangoni effect and Rayleigh-Benard effect in the two-phase region of solar trough heat-absorbing tube are simulated by FTM (front tracking method). Considering the Marangoni effect alone, although surface tension gradient and surface tension affect
Ying Zhang +4 more
doaj +1 more source
Critical effects in Rayleigh-Benard convection
The properties of the convection Rayleigh-Bénard phenomenon near its critical threshold of instability are shown to be closely related to those of a second order phase transition. A theory is developed in the framework of the Landau-Hopf hypothesis, and all its predictions are verified by experimental results.
Wesfreid, J. +4 more
openaire +2 more sources
Localized Convection in Sputnik Planitia, Pluto
Abstract The cellular plains on Sputnik Planitia (SP) are thought to originate from convection in the nitrogen ice layer that fills the basin. Whereas the cells toward the center of SP's cellular plains are wider and interconnected—features explained by vigorous convection—the cells near the margins are smaller and less contiguous, with some appearing ...
C. Jain, V. S. Solomatov, W. B. McKinnon
wiley +1 more source
Vertical heat transport at infinite Prandtl number for micropolar fluid
We investigate the upper bound on the vertical heat transport in the fully 3D Rayleigh–Bénard convection problem at the infinite Prandtl number for a micropolar fluid.
M. Caggio +3 more
doaj +1 more source

