Results 11 to 20 of about 35,832 (271)
Scaling Laws in Rayleigh‐Bénard Convection
Earth and Space Science, 2019 The heat transfer scaling theories for Rayleigh‐Bénard convection (RBC) are reviewed and discussed for configurations with and without rotation and magnetic fields.
Meredith Plumley, Keith Julien
doaj +2 more sources
Force balance in rapidly rotating Rayleigh-Bénard convection. [PDF]
J Fluid Mech, 2021 The force balance of rotating Rayleigh–Bénard convection regimes is investigated using direct numerical simulation on a laterally periodic domain, vertically bounded by no-slip walls.
Guzmán AJA +5 more
europepmc +2 more sources
The Rayleigh-Benard Convection in Rarefied Gases [PDF]
, 1998 In the present paper we investigate the Rayleigh-Benard convection in rarefied gases and demonstrate by numerical experiments the transition from purely thermal conduction to a natural convective flow for a large range of Knudsen numbers from 0.02 downto 0.001.
Cercignani, Carlo +2 more
openaire +2 more sources
Effective control of two-dimensional Rayleigh-Bénard convection: invariant multi-agent reinforcement learning is all you need [PDF]
The Physics of Fluids, 2023 Rayleigh–Bénard convection (RBC) is a recurrent phenomenon in a number of industrial and geoscience flows and a well-studied system from a fundamental fluid-mechanics viewpoint.
Colin Vignon +5 more
semanticscholar +1 more source
Direct data-driven forecast of local turbulent heat flux in Rayleigh-Bénard convection [PDF]
The Physics of Fluids, 2022 A combined convolutional autoencoder–recurrent neural network machine learning model is presented to directly analyze and forecast the dynamics and low-order statistics of the local convective heat flux field in a two-dimensional turbulent Rayleigh ...
S. Pandey +3 more
semanticscholar +1 more source
Turbulent Rotating Rayleigh–Bénard Convection
Annual Review of Fluid Mechanics, 2022 Rotation with thermally induced buoyancy governs many astrophysical and geophysical processes in the atmosphere, ocean, sun, and Earth's liquid-metal outer core.
R. Ecke, O. Shishkina
semanticscholar +1 more source
Robust wall states in rapidly rotating Rayleigh–Bénard convection [PDF]
Journal of Fluid Mechanics, 2020 We show, using direct numerical simulations with experimentally realizable boundary conditions, that wall modes in Rayleigh–Bénard convection in a rapidly rotating cylinder persist even very far from their linear onset.
B. Favier, E. Knobloch
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Controlling Rayleigh–Bénard convection via reinforcement learning [PDF]
Journal of turbulence, 2020 Thermal convection is ubiquitous in nature as well as in many industrial applications. The identification of effective control strategies to, e.g. suppress or enhance the convective heat exchange under fixed external thermal gradients is an outstanding ...
Gerben Beintema +3 more
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Heat transfer and large scale dynamics in turbulent Rayleigh-Bénard convection [PDF]
, 2008 The progress in our understanding of several aspects of turbulent Rayleigh-Benard convection is reviewed. The focus is on the question of how the Nusselt number and the Reynolds number depend on the Rayleigh number Ra and the Prandtl number Pr, and on ...
G. Ahlers, S. Grossmann, D. Lohse
semanticscholar +1 more source
Rayleigh-Bénard convection: The container shape matters
Physical Review Fluids, 2021 In an effort to achieve very large Rayleigh numbers when studying turbulence on a Rayleigh--Baposenard configuration, one can carry out simulations and experiments in as high convection cells as possible which involves using convection cells with the ...
O. Shishkina
semanticscholar +1 more source