Results 31 to 40 of about 4,508,637 (317)
Supergranule aggregation for constant heat flux-driven turbulent convection [PDF]
Phys. Rev. Research 3, 013231 (2021), 2020 Turbulent convection processes in nature are often found to be organized in a hierarchy of plume structures and flow patterns. The gradual aggregation of convection cells or granules to a supergranule which eventually fills the whole horizontal layer is reported and analysed in spectral element direct numerical simulations of three-dimensional ...
arxiv +1 more source
Advances in Mechanical Engineering, 2014 A numerical model is developed to simulate combined natural convection and radiation heat transfer of various anisotropic absorbing-emitting-scattering media in a 2D square cavity based on the discrete ordinate (DO) method and Boussinesq assumption.
Xianglong Liu +2 more
doaj +1 more source
On the convective nature of roll waves instability [PDF]
Journal of Applied Mathematics, 2005 A theoretical analysis of the Saint‐Venant one‐dimensional flow model is performed in order to define the nature of its instability. Following the Brigg criterion, the investigation is carried out by examining the branch points singularities of dispersion relation in the complex ω and k planes, where ω and k are the complex pulsation and wave number
C. DI CRISTO, VACCA A
openaire +6 more sources
INVESTIGATION OF INDIRECT SOLAR DRYING OF GINGER RHIZOMES (ZINGIBER OFFICINALE): A COMPARATIVE STUDY [PDF]
Journal of Engineering Science and Technology, 2017 In this communication, an attempt has been made to investigate the drying kinetics of ginger rhizomes under natural and forced convection indirect solar drying modes.
SUNIL K. SANSANIWAL +3 more
doaj
Electrochemistry Communications, 2023 Herein we reported the in-situ electrochemical concentration measurement of soluble-soluble redox species (Eu3+/Eu2+ and Sm3+/Sm2+) in molten LiCl-KCl, based on the notable natural convection in molten salts.
Fei Zhu +6 more
doaj
Natural Convection Numeric Simulation on Metal Freezing Using Differential Method
Mekanika, 2017 The research of modeling of natural convection in metal solidification process with finite different method was conducted to determine temperature distribution and fluid flow profil with variations value Rayleigh number. The research conducted by solving
Heri Suprianto +2 more
doaj +1 more source
Effect of Variable Thermal Expansion Coefficient and Nanofluid Properties on Steady Natural Convection in an Enclosure [PDF]
Journal of Applied and Computational Mechanics, 2017 Steady state natural convection is numerically investigated in an enclosure using variable thermal conductivity, viscosity and thermal expansion coefficient of Al2O3–water nanofluid. This study has been conducted for a wide range of Rayleigh numbers (103≤
Esmaeil Ghahremani +3 more
doaj +1 more source
The Emergence of Solar Supergranulation as a Natural Consequence of Rotationally-Constrained Interior Convection [PDF]
, 2016 We investigate how rotationally-constrained, deep convection might give rise to supergranulation, the largest distinct spatial scale of convection observed in the solar photosphere. While supergranulation is only weakly influenced by rotation, larger spatial scales of convection sample the deep convection zone and are presumably rotationally influenced.
arxiv +1 more source
Numerical prediction of mixed convection heat transfer in an enclosure [PDF]
, 2012 In this article the transport mechanism of laminar mixed convection in a shear and buoyancy driven cavity flow with locally heated lower wall and moving cooled sidewalls is numerically studied using cubic interpolation profile method.
Che Sidik, Nor Azwadi, Salehi, Mehran
core
Core-Collapse Simulations of Rotating Stars [PDF]
, 1999 We present the results from a series of two-dimensional core-collapse simulations using a rotating progenitor star. We find that the convection in these simulations is less vigorous because a) rotation weakens the core bounce which seeds the neutrino ...
Alexander Heger +19 more
core +2 more sources