Results 21 to 30 of about 259 (134)

A Student Project On Rayleigh Benard Convection [PDF]

open access: yes2008 Annual Conference & Exposition Proceedings, 2020
Comment: 8 ...
openaire   +2 more sources

Effects of Controller and Nonuniform Temperature Profile on the Onset of Rayleigh-Bénard-Marangoni Electroconvection in a Micropolar Fluid

open access: yesJournal of Applied Mathematics, 2014
Linear stability analysis is performed to study the effects of nonuniform basic temperature gradients on the onset of Rayleigh-Bénard-Marangoni electroconvection in a dielectric Eringen’s micropolar fluid by using the Galerkin technique.
H. M. Azmi, R. Idris
doaj   +1 more source

Hexagonal Cell Formation in Darcy–Bénard Convection with Viscous Dissipation and Form Drag

open access: yesFluids, 2017
Recent interest in the effects of viscous dissipation on convective flows in porous media has centred almost exclusively on forced convection flows. In this paper, we investigate the manner in which it affects the onset and early stages of convection in ...
D. Andrew S. Rees, Eugen Magyari
doaj   +1 more source

Numerical analysis of Poiseuille-Rayleigh-Bénard convection in supercritical carbon dioxide

open access: yesNuclear Engineering and Technology, 2022
The supercritical carbon dioxide (S–CO2) Brayton cycle is an important energy conversion technology for the fourth generation of nuclear energy. Since the printed circuit heat exchanger (PCHE) used in the S–CO2 Brayton cycle has narrow channels, Rayleigh-
Zhipeng Wang   +5 more
doaj   +1 more source

Onset of Chaos in the Rayleigh-Benard Convection [PDF]

open access: yesProgress of Theoretical Physics Supplement, 1984
Etude de l'evolution dans le temps de la convection de Rayleigh-Benard pres de la transition vers le chaos, en utilisant les systemes de Galyorkin d'equations differentielles ...
openaire   +1 more source

Horizontal Cellular Oscillations Caused by Time-Periodic Resonant Thermal Forcing in Weakly Nonlinear Darcy-Bénard Convection

open access: yesFluids, 2017
The onset of Rayleigh-Bénard convection in a horizontally unbounded saturated porous medium is considered. Particular attention is given to the stability of weakly nonlinear convection between two plane horizontal surfaces heated from below.
Ibrahim M. Jais, D. Andrew S. Rees
doaj   +1 more source

Study of heat and mass transport in Couple-Stress liquid under G-jitter effect

open access: yesAin Shams Engineering Journal, 2018
In the present paper, we deal with the effect of G-jitter (time periodic gravity modulation) on the stability of double diffusive convection in couple stress liquid by method of non-linear analysis. The infinitesimal disturbances are expanded in terms of
Anand Kumar, Vanita, Vinod K. Gupta
doaj   +1 more source

Incompressible flows and the Boussinesq approximation: 50 years of CFD

open access: yesComptes Rendus. Mécanique, 2022
We offer a synthetic exposition on the state of the art for Computational Fluid Dynamics (CFD) relevant to the Navier–Stokes equations with the Boussinesq approximation, smoothly blending a history of the field with an accessible exposition of the ...
Lappa, Marcello
doaj   +1 more source

Surface deflection in Rayleigh-Benard convection

open access: yesJournal de Physique, 1989
The problem of the deformation of a free upper surface in a convective layer subjected to an adverse temperature gradient is analyzed. An analytical expression for the amplitude of the surface deflection in terms of the fluid layer parameters has been obtained when buoyancy force is the responsible mechanism for instability (thick layers).
Jiménez-Fernandez, Javier   +1 more
openaire   +2 more sources

Scaling Laws in Rayleigh‐Bénard Convection

open access: yesEarth 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   +1 more source

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