Results 31 to 40 of about 22,621 (165)

Richardson Extrapolation for Singularly Perturbed Fredholm Integro Differential Equations [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
This study numerically derived the higher order convergence for a class of singularly perturbed Fredholm integro differential equations with reaction diffusion and convection diffusion type problems.
P. Antony Prince   +2 more
doaj   +1 more source

Lattice Boltzmann Simulation of Spatial Fractional Convection–Diffusion Equation

open access: yesEntropy
The space fractional advection–diffusion equation is a crucial type of fractional partial differential equation, widely used for its ability to more accurately describe natural phenomena. Due to the complexity of analytical approaches, this paper focuses
Xiaohua Bi, Huimin Wang
doaj   +1 more source

Heat Transport and Convective Velocities in Compositionally Driven Convection in Neutron Star and White Dwarf Interiors

open access: yesThe Astrophysical Journal, 2023
We investigate heat transport associated with compositionally driven convection driven by crystallization at the ocean–crust interface in accreting neutron stars, or growth of the solid core in cooling white dwarfs.
J. R. Fuentes   +3 more
doaj   +1 more source

A stabilized mixed finite element method for convection-diffusion-reaction equations

open access: yes四川大学学报. 自然科学版, 2023
In this paper, we propose a stabilized finite element for the convection-diffusion-reaction equations. This finite element combines the mixed finite element with the least-squares method.
YANG Xing-Yue   +2 more
doaj  

The Cheng-Minkowycz problem for quadratic convective and radiative heat transfer in a nanofluid saturated porous medium: A revised model

open access: yesCase Studies in Thermal Engineering, 2023
The characteristics of heat transport in a porous medium saturated by a nanoliquid subject to non-linear variations of density-temperature relation and a novel quadratic thermal radiation are studied.
Puneet Rana, Akash Kumar, Sarita Pippal
doaj   +1 more source

Diffusive Convection [PDF]

open access: yesProceedings of the Physical Society of London, 1897
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openaire   +1 more source

Graph Neural Convection-Diffusion with Heterophily

open access: yesProceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, 2023
Graph neural networks (GNNs) have shown promising results across various graph learning tasks, but they often assume homophily, which can result in poor performance on heterophilic graphs. The connected nodes are likely to be from different classes or have dissimilar features on heterophilic graphs.
Kai Zhao 0010   +5 more
openaire   +3 more sources

Revisiting the natural convection effects at ultra-low redox concentration solutions: The influence of viscosity and diameter of wire electrode

open access: yesElectrochemistry Communications
Natural convection could arise even at ultra-low redox concentration solutions (1–10 mM). Models such as convection–diffusion layer model and spontaneous convection model have been established to describe this phenomenon.
Zichen Zhang   +6 more
doaj   +1 more source

Numerical Solutions for Convection-Diffusion Equation through Non-Polynomial Spline

open access: yesMATEC Web of Conferences, 2016
In this paper, numerical solutions for convection-diffusion equation via non-polynomial splines are studied. We purpose an implicit method based on non-polynomial spline functions for solving the convection-diffusion equation.
Ravi Kanth A.S.V., Deepika
doaj   +1 more source

Bidispersive double diffusive convection [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, 2018
Abstract A model is developed for double diffusive convection in a bidisperse porous medium. Double diffusive convection is convective movement of fluid due to temperature and salt gradient effects. A bidisperse porous medium is one where there are pores known as macropores, but the solid skeleton contains cracks or fissures which give rise to a ...
openaire   +2 more sources

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