Results 41 to 50 of about 4,508,637 (317)

Magnetohydrodynamic Nanofluid Natural Convection in a Cavity under Thermal Radiation and Shape Factor of Nanoparticles Impacts: A Numerical Study Using CVFEM

open access: yesApplied Sciences, 2018
In this study, the natural convection of a magnetohydrodynamic nanofluid in an enclosure under the effects of thermal radiation and the shape factor of nanoparticles was analyzed numerically using the control-volume-based finite element method (CVFEM ...
Ali J. Chamkha, A. Dogonchi, D. Ganji
semanticscholar   +1 more source

Effects of drying temperature, airflow, and cut segment on drying rate and activation energy of elephant cassava

open access: yesCase Studies in Thermal Engineering, 2020
One of the abundant raw materials of bioethanol is cassava; elephant cassava is a particular type of cassava that is physically larger than local cassava.
Engkos Achmad Kosasih   +2 more
doaj  

Theoretical study on melting of phase change material by natural convection

open access: yesCase Studies in Thermal Engineering, 2021
Natural convection plays a crucial role in latent heat storage system. Determining how natural convection affects the melting of phase change material (PCM) will provide a better understanding of the melting process and give helpful advice on ...
Bingkun Huang   +5 more
doaj  

Convective Heat Transfer in Porous Materials [PDF]

open access: yesarXiv, 2023
Thermal convection stands out as an exceptionally efficient thermal transport mechanism, distinctly separate from conduction and radiation. Yet, the inherently elusive nature of fluid motion poses challenges in accurately controlling convective heat flow.
arxiv  

Low Mach number modeling of Type I X-ray burst deflagrations [PDF]

open access: yesAstrophys.J.653:545-557,2006, 2006
The Low Mach Number Approximation (LMNA) is applied to 2D hydrodynamical modeling of Type I X-ray bursts on a rectangular patch on the surface of a non-rotating neutron star. Because such phenomena involve decidedly subsonic flows, the timestep increase offered by the LMNA makes routine simulations of these deflagrations feasible in an environment ...
arxiv   +1 more source

Natural convection of large Prandtl number fluids: A controversy answered by a new thermal lattice Boltzmann model

open access: yesCase Studies in Thermal Engineering, 2023
The purpose of this work is to deepen our understanding of natural convection with large Prandtl number fluids and to resolve some controversies in the previous publications.
Sheng Chen   +4 more
doaj  

Study on Bifurcation and Dual Solutions in Natural Convection in a Horizontal Annulus with Rotating Inner Cylinder Using Thermal Immersed Boundary-Lattice Boltzmann Method

open access: yesEntropy, 2018
A numerical investigation has been carried out to understand the mechanism of the rotation effect on bifurcation and dual solutions in natural convection within a horizontal annulus.
Yikun Wei   +3 more
doaj   +1 more source

On the necessary conditions for bursts of convection within the rapidly rotating cylindrical annulus [PDF]

open access: yesPhys. Fluids 24, 066604 (2012), 2013
Zonal flows are often found in rotating convective systems. Not only are these jet-flows driven by the convection, they can also have a profound effect on the nature of the convection. In this work the cylindrical annulus geometry is exploited in order to perform nonlinear simulations seeking to produce strong zonal flows and multiple jets.
arxiv   +1 more source

Problems of astrophysical turbulent convection: thermal convection in a layer without boundaries [PDF]

open access: yes, 2010
Thermal convection in fluid layers heated from below are usually realized experimentally as well as treated theoretically with fixed boundaries on which conditions for the temperature and the velocity field are prescribed.
Busse, F.H., Simitev, R.D.
core   +1 more source

Charging of an Air–Rock Bed Thermal Energy Storage under Natural and Forced Convection

open access: yesEnergies
An air-rock bed thermal storage system was designed for small-scale powered generation and analyzed with computational fluid dynamics (CFD) using ANSYS-Fluent simulation. An experimental system was constructed to compare and validate the simulation model
Ashenafi Kebedom Abrha   +3 more
doaj   +1 more source

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