Results 61 to 70 of about 221 (89)

Study of regular and chaotic dynamics in double diffusive Rayleigh-Bénard convection of a micropolar fluid

Results in Engineering
The study explores the behaviour of a micropolar fluid subjected to a double-diffusive Rayleigh-Bénard configuration, focusing on the emergence of regular convection, periodic motion, and chaotic dynamics across a broad range of the scaled Rayleigh ...
Anirudh P, M.S. Jagadeesh Kumar
doaj   +1 more source

Resolving the fine-scale structure in turbulent Rayleigh–Bénard convection

New Journal of Physics, 2013
We present high-resolution direct numerical simulation studies of turbulent Rayleigh–Bénard convection in a closed cylindrical cell with an aspect ratio of one. The focus of our analysis is on the finest scales of convective turbulence, in particular the
Janet D Scheel, Mohammad S Emran, Jörg Schumacher   +2 more
doaj   +1 more source

Reduced basis method applied to a convective stability problem

Journal of Mathematics in Industry, 2018
Numerical reduced basis methods are instrumental to solve parameter dependent partial differential equations problems in case of many queries. Bifurcation and instability problems have these characteristics as different solutions emerge by varying a ...
Henar Herrero, Yvon Maday, Francisco Pla
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Rayleigh-Benard convection in a viscoelastic fluid-filled high-porosity medium with nonuniform basic temperature gradient

International Journal of Mathematics and Mathematical Sciences, 2001
The qualitative effect of nonuniform temperature gradient on the linear stability analysis of the Rayleigh-Benard convection problem in a Boussinesquian, viscoelastic fluid-filled, high-porosity medium is studied numerically using the single-term ...
Pradeep G. Siddheshwar, C. V. Sri Krishna   +1 more
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Radiatively driven convection: diffusivity-free regimes of geophysical and astrophysical flows in the laboratory

Comptes Rendus. Physique
We consider the turbulent heat transport induced by thermal convection. The widespread belief is that the transport properties of the turbulent flow should be independent of the tiny molecular diffusivities for asymptotically strong driving, but the ...
Hadjerci, Gabriel, Bouillaut, Vincent, Miquel, Benjamin, Aumaître, Sébastien, Gallet, Basile   +4 more
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Convection de Bénard–Rayleigh. Cas libre-libre

Comptes Rendus. Mécanique, 2023
Iooss, Gérard
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Initial-boundary layer associated with the 3-D Boussinesq system for Rayleigh-Benard convection

Electronic Journal of Differential Equations, 2020
This article concerns the initial-boundary layer effects of the 3-D incompressible Boussinesq system for Rayleigh-Benard convection with ill-prepared initial data.
Xiaoting Fan, Shu Wang, Wen-Qing Xu
doaj  

A Multi-Relaxation-Time Lattice Boltzmann Method on Non- Uniform Grids for Large Eddy Simulation of Rayleigh-Bénard Convection Using Two Sub-Grid Scale Models

Journal of Applied Fluid Mechanics, 2014
In the present work, for the first time, the application of a Multi-Relaxation-Time Lattice Boltzmann (MRT-LB) model for large-eddy simulation (LES) of turbulent thermally driven flows on non-uniform grids is considered.
Ahmad Reza Rahmati, Mahmud Ashrafizaadeh, E. Shirani   +2 more
doaj  

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Colloquium: Unusual dynamics of convection in the Sun

Reviews of Modern Physics, 2020
Joerg Schumacher, Katepalli Sreenivasan   +1 more
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