Results 51 to 60 of about 1,398 (181)

Free Convection and Irreversibility Analysis inside a Circular Porous Enclosure

open access: yesEntropy, 2003
We investigate the nature of heat transfer and entropy generation for natural convection in a two-dimensional circular section enclosure. The enclosure is assumed to fill with porous media.
Shohel Mahmud, Roydon Andrew Fraser
doaj   +1 more source

How Modeling Assumptions Shape Predictions of Convective Mixing of Carbon Dioxide

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We investigate how models of fluid properties and boundary conditions influence predictions of convective mixing in confined porous media, with relevance to subsurface carbon dioxide storage. Using high‐resolution simulations at high Rayleigh‐Darcy numbers (O(104 ${10}^{4}$)), we analyze miscible fluids with linear, nonlinear, and non ...
Marco De Paoli, Sergio Pirozzoli
wiley   +1 more source

Evaluation of High‐Resolution CORDEX‐CMIP6 Ocean Temperature Simulations for the Great Barrier Reef

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Longevity of the Great Barrier Reef (GBR) relies on specific oceanic and atmospheric conditions that are quickly deteriorating under climate change. While global climate models (GCMs) provide insights into large‐scale processes, they often lack the resolution to capture regional nuances affecting the GBR.
Sun W. Kim   +3 more
wiley   +1 more source

Natural convection flow near a vertical plate that applies a shear stress to a viscous fluid. [PDF]

open access: yesPLoS ONE, 2013
The unsteady natural convection flow of an incompressible viscous fluid near a vertical plate that applies an arbitrary shear stress to the fluid is studied using the Laplace transform technique. The fluid flow is due to both the shear and the heating of
Qammar Rubbab   +3 more
doaj   +1 more source

Impact of Iridium Crucible Aging on Cz‐YAG Crystal Quality and Process Economy: A Data‐Driven Study

open access: yesCrystal Research and Technology, Volume 61, Issue 8, August 2026.
Machine learning models trained on CFD‐generated data reveal how iridium crucible aging influences key Czochralski YAG crystal growth outcomes. Interpretable analyses uncover the dominant role of iridium loss and its interactions with process variables, enabling accurate prediction of heating power, interface shape, and the ratio of growth rate to ...
Natasha Dropka   +4 more
wiley   +1 more source

Slender vortex filaments in the Boussinesq approximation

open access: yesPhysics of Fluids
A model for the motion of slender vortex filaments is extended to include the effect of gravity. The model, initially introduced by Callegari and Ting [“Motion of a curved vortex filament with decaying vortical core and axial velocity,” SIAM J. Appl. Math.
Marie Rodal   +2 more
openaire   +3 more sources

Investigation of behavior of the dynamic contact angle on the basis of the Oberbeck-Boussinesq approximation of the Navier-Stokes equations

open access: yesMATEC Web of Conferences, 2016
Flows of a viscous incompressible liquid with a thermocapillary boundary are investigated numerically on the basis of the mathematical model that consists of the Oberbeck-Boussinesq approximation of the Navier-Stokes equations, kinematic and dynamic ...
Goncharova Olga   +2 more
doaj   +1 more source

On nonisothermal two‐fluid channel flows

open access: yesMathematical Modelling and Analysis, 2007
Two‐fluid channel flows arise in different kinds of coating technologies. The corresponding mathematical models represent two‐dimensional free boundary value problems for the Navier‐Stokes equations or their modifications.
Jajanek Sokolowsky
doaj   +1 more source

Modeling and Analysis of Nonlinear Radiative and Electromagnetic Effects With Second‐Order Slip in Unsteady Hybrid Nanofluid Flow Past a Porous Stretching Surface

open access: yesEngineering Reports, Volume 8, Issue 8, August 2026.
The current work examines the dynamics of the stagnation point flow of an unsteady hybrid nanofluid (Fe2O3–Cu/H2O) across an inclined porous stretching surface. It considers heat transfer, second‐order slip, electrical field, heat source/sink, mixed convection, and magnetic field effects, as well as linear and nonlinear radiation.
Mazhar Hussain   +4 more
wiley   +1 more source

Simulation of the two-dimensional Rayleigh-Taylor instability problem by using diffuse-interface model

open access: yesAIP Advances, 2019
The purpose of this paper is to simulate a two-dimensional Rayleigh-Taylor instability problem using the diffuse-interface formulation of the incompressible Navier-Stokes equations. The governing equations consist of a system of coupled nonlinear partial
Saher Akmal Khan, Abdullah Shah
doaj   +1 more source

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