Results 71 to 80 of about 575,957 (174)

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

Nonlinear Dynamo in Obliquely Rotating Stratified Electroconductive Fluid in an Uniformly Magnetic Field

open access: yesEast European Journal of Physics, 2020
In this paper, we investigated a new large-scale instability that arises in an obliquely rotating convective electrically conducting fluid in an external uniform magnetic field with a small-scale external force with zero helicity.
Michael I. Kopp   +3 more
doaj   +1 more source

A Hybrid FEM–ML Framework for Magnetohydrodynamic Combined Convective Heat Transfer Performance of Hybrid Nanofluid Flow in a Horizontal Wavy Channel

open access: yesEngineering Reports, Volume 8, Issue 9, September 2026.
The maximum heat transfer rate is observed at Ri = 10, Ha = 0, and ϕ = 0.06 under the default parameter settings for different boundary conditions. The proposed ANN model demonstrates good predictive and classification accuracy in estimating the average Nusselt number for both cases. ABSTRACT This computational study introduces a novel hybrid framework
Md. Fayz–Al–Asad   +1 more
wiley   +1 more source

Limits of the Oberbeck–Boussinesq approximation in a tall differentially heated cavity filled with water [PDF]

open access: yes, 2014
The present work assesses the limits of the Oberbeck–Boussinesq (OB) approximation for the resolution of turbulent fluid flow and heat transfer inside a tall differentially heated cavity of aspect ratio G = 6.67 filled with water (Pr = 3.27, Ra = 2.12e11)
Kizildag, Deniz   +3 more
core   +1 more source

The Oberbeck-Boussinesq approximation in critical spaces

open access: yes, 2013
International audienceIn this paper we study the validity of the so-called Oberbeck-Boussinesq approximation for compressible viscous perfect gases in the whole three-dimensional space.
He, Lingbing, Danchin, Raphaël
core   +3 more sources

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

Infragravity Waves Across a Steep‐Sloping Rough Rocky Seabed on the Inner Shelf

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Observations of infragravity (IG) waves were conducted from June to October 2023 along the rocky shores off China Rock, CA, on the inner shelf at depths of 8–13 m. The study examines inner‐shelf IG wave dynamics over rough, steep rocky shores and compares them with those over smoother, gentler sandy shores and coral reefs. IG energy correlated
Jamie MacMahan   +4 more
wiley   +1 more source

Thermal dissipation of two-step combustible tangent hyperbolic fluid with quadratic Boussinesq approximation and convective cooling

open access: yesResults in Materials
This study explores thermal criticality and dissipation involving a two-step reaction in a hyperbolic tangential fluid flow and quadratic Boussinesq approximation to model the complex internal heat transfer mechanisms during combustion.
A.D. Ohaegbue   +4 more
doaj   +1 more source

Observed Bottom Intensified Diurnal Currents on the Upper Continental Slope North of Svalbard

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract In the Arctic Ocean, dissipation is generally weak except for some hot spots on the continental slope or along the edge of the Yermak Plateau where observations suggest that tidal currents are the main source of dissipation. In this study, we analyze observations collected between September 2017 and November 2019 from a mooring deployed on the
Christophe Herbaut   +10 more
wiley   +1 more source

Enhancing the Upper Boundary Layer Damping Scheme for km‐Scale ICON: A Question of Wavelength

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract The upper boundary condition treatment in atmospheric models has a pronounced impact on stability and performance. At the same time, the choice of damping settings can severely impact atmospheric states by not sufficiently preventing back‐reflections of vertically propagating waves from the model top or provoking back‐reflections from the ...
C. A. Kroll   +4 more
wiley   +1 more source

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