Results 41 to 50 of about 268,500 (212)
Quasipatterns in steady Bénard -Rayleigh convection [PDF]
, 2009 International audienceQuasipatterns in the steady Bénard-Rayleigh convection problem are considered. These are two-dimensional patterns, quasiperiodic in any horizontal direction, invariant under horizontal rotations of angle 2π/Q.
Iooss, Gérard
core +2 more sources
Journal of Thermal Science and Technology, 2017 Transient three-dimensional numerical computations are implemented to clarify the natural convective heat transfer characteristics of the Rayleigh-Benard convection of Al2O3-water nanofluids induced in a shallow vertical cylindrical enclosure.
Masato AKAMATSU +4 more
doaj +1 more source
Case Studies in Thermal Engineering, 2023 In order to reveal the combined influences of Rayleigh (Ra) number, Reynolds (Re) number and spanwise aspect ratio (B) on the flow pattern evolution and stability, and heat transfer of Poiseuille-Rayleigh-Bénard (PRB) convection, we presented a set of ...
Li Zhang +3 more
doaj +1 more source
Rotation and confinement in turbulent Rayleigh-Bénard convection [PDF]
, 2023 This dissertation investigates the heat transport and its enhancement in rotating Rayleigh-Bénard convection and confined Rayleigh-Bénard convection in various geometries by the use of direct numerical simulations.
Hartmann, Robert
core +1 more source
On the inverse cascade and flow speed scaling behaviour in rapidly rotating Rayleigh–Bénard convection [PDF]
Journal of Fluid Mechanics, 2020 Rotating Rayleigh–Bénard convection is investigated numerically with the use of an asymptotic model that captures the rapidly rotating, small Ekman number limit, $Ek \rightarrow 0$. The Prandtl number ($Pr$) and the asymptotically scaled Rayleigh number (
S. Maffei +3 more
semanticscholar +1 more source
Experiments in Fluids, 2021 Large-scale mean patterns in Rayleigh–Bénard convection, also referred to as turbulent superstructures, have mainly been studied by means of numerical simulations so far, but experimental investigations are still rare.
Sebastian Moller, C. Resagk, C. Cierpka
semanticscholar +1 more source
Available potential energy in Rayleigh-Bénard convection
, 2021 The mechanical energy budget for thermally equilibrated Rayleigh–Bénard convection is developed theoretically, with explicit consideration of the role of available potential energy, this being the form in which all the mechanical energy for the flow is ...
Gayen, Bishakhdatta +2 more
core +1 more source
Journal 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
Bistability in Rayleigh-Bénard convection with a melting boundary [PDF]
Physical Review Fluids, 2020 A pure and incompressible material is confined between two plates such that it is heated from below and cooled from above. When its melting temperature is comprised between these two imposed temperatures, an interface separating liquid and solid phases ...
Jhaswantsing Purseed +3 more
semanticscholar +1 more source
Numerical analysis of Poiseuille-Rayleigh-Bénard convection in supercritical carbon dioxide
Nuclear 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