Results 131 to 140 of about 638 (180)

Rayleigh–Benard convection of viscoelastic fluid

Applied Mathematics and Computation, 2003
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exaly   +4 more sources

Evolution of the Rayleigh-Benard Convection in a Rectangular Box

Journal of the Physical Society of Japan, 1996
We report the results on the MAC numerical simulations of the Rayleigh-Benard convection for a Boussinesq fluid with the Prandtl number P r =6 confined in a rectangular box with the aspect ratios Γ x =3.0 and Γ y =1.5. With increase of the Rayleigh number, the initial state with two parallel steady rolls undergoes a successive series of transitions in ...
Yahata Hideo, Hideo Yahata
exaly   +2 more sources

Time-periodic Heating of Rayleigh-Benard Convection

Physica Scripta, 2002
Summary: The linear stability problem for a fluid in a classical Benard configuration is examined. In addition to a steady temperature difference between the walls of the fluid layer, a time-dependent perturbation is applied to the wall temperatures. The time-dependent perturbation is expressed in Fourier series.
Bhadauria, B. S., Bhatia, P. K.
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Rayleigh-Benard Convection in an Electrochemical Redox Cell

Science, 1984
Damped voltage oscillations occur when current steps are applied to a cell consisting of a thin layer of Fe 111 /Fe 11 electrolyte sandwiched between horizontal, parallel, platinized platinum electrodes.
W J, Ward, O H, LE Blanc
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Rayleigh–Benard convection in rotating fluids

International Journal of Heat and Mass Transfer, 2008
Abstract Linear and weakly nonlinear properties of Rayleigh–Benard convection in rotating fluids are investigated. Linear stability analysis is studied to investigate analytically the effect of Coriolis force on gravity-driven convection for idealised stress-free boundary conditions.
S.G. Tagare, A. Benerji Babu, Y. Rameshwar   +2 more
openaire   +1 more source

Two-dimensional Rayleigh-Benard convection

Journal of Fluid Mechanics, 1973
Two-dimensional convection in a Boussinesq fluid confined between free boundaries is studied in a series of numerical experiments. Earlier calculations by Fromm and Veronis were limited to a maximum Rayleigh number R 50 times the critical value R, for linear instability. This range is extended to 1000R c .
Moore, D. R., Weiss, N. O.
openaire   +2 more sources

Molecular dynamics and Rayleigh–Benard convection

The Journal of Chemical Physics, 1989
A number of recent molecular dynamic studies have shown that transient convection cells can occur in hard disk systems containing as few as 5000 particles. We extend these studies, with special attention to the role of the various algorithms used to impose thermal boundary conditions.
James A. Given, Enrico Clementi
openaire   +1 more source

Chaos and turbulence in Rayleigh-Benard convection

Physica Scripta, 1989
Some situations of turbulent Rayleigh-Benard convection are presented with increasing number of spatial degrees of freedom.
openaire   +1 more source

Bifurcation control of Rayleigh-Benard convection

Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328), 2003
Bifurcation control deals with the modification of the bifurcation characteristics of a parametrized nonlinear system by a judiciously designed control input. In this paper, we investigate the problem of active control of Rayleigh-Benard convection (RBC) via a bifurcation control approach.
null Dong Chen, H.O. Wang, L.E. Howle
openaire   +1 more source

Momentum flux in Rayleigh–Benard convection

Physica A: Statistical Mechanics and its Applications, 2004
Abstract The statistical quantities concerning the momentum flux in the Rayleigh–Benard convection are investigated in detail. The transition from soft turbulence to hard turbulence is captured through the momentum flux. The time series of the momentum flux is studied and its power spectrum shows the sign of the transition.
openaire   +1 more source