Results 31 to 40 of about 35,832 (271)

Effects of radius ratio on annular centrifugal Rayleigh–Bénard convection [PDF]

Journal of Fluid Mechanics, 2021
We report on a three-dimensional direct numerical simulation study of flow structure and heat transport in the annular centrifugal Rayleigh–Bénard convection (ACRBC) system, with cold inner and hot outer cylinders corotating axially, for the Rayleigh ...
Dongpu Wang, Hechuan Jiang, Shuang Liu, Xiaojue Zhu, Chao Sun   +4 more
semanticscholar   +1 more source

Numerical Analysis of Linear Traveling Wave in Rotating Rayleigh–Bénard Convection with an Adiabatic Sidewall

Fluids, 2023
In rotating Rayleigh–Bénard problems, convection with traveling waves may occur near the sidewalls. The Rayleigh number, Taylor number and Prandtl number are involved in this phenomenon, and the convection mode is determined depending on their values. We
Toshio Tagawa
doaj   +1 more source

Turbulent thermal superstructures in Rayleigh-Bénard convection [PDF]

, 2018
We report the observation of superstructures, i.e., very large-scale and long living coherent structures in highly turbulent Rayleigh-Benard convection up to Rayleigh Ra=109.
Richard J.A.M. Stevens, A. Blass, Xiaojue Zhu, R. Verzicco, D. Lohse   +4 more
semanticscholar   +1 more source

Rayleigh–Bénard convection with a melting boundary [PDF]

Journal of Fluid Mechanics, 2018
We study the evolution of a melting front between the solid and liquid phases of a pure incompressible material where fluid motions are driven by unstable temperature gradients.
B. Favier, Jhaswantsing Purseed, L. Duchemin   +2 more
semanticscholar   +1 more source

Analysis of Rayleigh-Bénard convection with thermal volumetric radiation using Lattice Boltzmann Formulation

Journal of Thermal Science and Technology, 2017
The interactions between Transient Rayleigh-Bénard convection and volumetric radiation are investigated by means of the lattice Boltzmann method (LBM) performed for a two dimensional participating Rayleigh-Bénard cell.
Raoudha CHAABANE, Faouzi ASKRI, Abdelmajid JEMNI, Sassi BEN NASRALLAH   +3 more
doaj   +1 more source

Semi-theoretical correlations of melting process driven by Rayleigh–Bénard convection suitable for low melting point metal

Case Studies in Thermal Engineering, 2021
This paper studies the melting process of low melting point metal (LMPM) in a square cavity heated from bottom in the presence of Rayleigh–Bénard convection.
Wenhua Guo, Rijing Zhao, Yi Liu, Dong Huang   +3 more
doaj   +1 more source

Boundary Zonal Flow in Rotating Turbulent Rayleigh-Bénard Convection. [PDF]

Physical Review Letters, 2019
For rapidly rotating turbulent Rayleigh-Bénard convection in a slender cylindrical cell, experiments and direct numerical simulations reveal a boundary zonal flow (BZF) that replaces the classical large-scale circulation.
Xuan Zhang, Dennis P M van Gils, S. Horn, Marcel Wedi, Lukas Zwirner, G. Ahlers, R. Ecke, S. Weiss, E. Bodenschatz, O. Shishkina   +9 more
semanticscholar   +1 more source

Thermal vibrational convection in near-critical fluids. Part 2. Weakly non-uniform heating [PDF]

, 2006
The governing equations and effective boundary conditions to describe thermal vibrational convection in a near-critical fluid are derived with the help of the multiple-scale method and averaging procedure. In contrast to Part 1, this paper focuses on the
Vorobev, Anatoliy, Lyubimov, Dimitry, Mojtabi, Abdelkader, Zappoli, Bernard, Lyubimova, T., Vorobev, A., Lyubimov, D., Lyubimova, Tanya, Mojtabi, A., Zappoli, B.   +9 more
core   +1 more source

Inclined Rayleigh–Benard Convection: Role of Critical Aspect Ratio in Vertical Cavities

Engineering Proceedings, 2023
Inclined Rayleigh–Benard Convection (RBC) is numerically investigated in a two-dimensional vertical cavity; the critical aspect ratio and the critical Rayleigh number are discussed.
Wajeeha Siddiqui
doaj   +1 more source

The Character of Entropy Production in Rayleigh–Bénard Convection

Entropy, 2014
In this study; the Rayleigh–Bénard convection model was established; and a great number of Bénard cells with different numbered vortexes were acquired by numerical simulation.
Chenxia Jia, Chengjun Jing, Jian Liu
doaj   +1 more source