Results 41 to 50 of about 1,385 (181)

Mathematical Modelling of the Evaporating Liquid Films on the Basis of the Generalized Interface Conditions

open access: yesMATEC Web of Conferences, 2016
The two-dimensional films, flowing down an inclined, non-uniformly heated substrate are studied. The results contain the new mathematical models developed with the help of the long-wave approximation of the Navier-Stokes and heat transfer equations or ...
Goncharova Olga, Rezanova Ekaterina
doaj   +1 more source

Propagation of internal gravity waves: Optimal vertical discretisation and grid design based on numerical error analysis

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
An energy‐conserving discrete framework for the vertical discretisation of stratified ocean models is developed using internal gravity‐wave theory. A β$$ \beta $$‐indexed family of schemes is analysed through perturbation theory, revealing optimal parameter choices and grid designs that reduce truncation errors significantly.
Gabriel Derrida   +3 more
wiley   +1 more source

Macroscopic Convective Fluid Flows Arising From Binding of Ions and Small Molecules to Proteins

open access: yesSmall, EarlyView.
The interaction of ions or small molecules with proteins causes convective flows due to the displacement of water from the hydration shell. As shown, the replacement of the nickel ion removed from urease by EDTA pre‐treatment results in binding‐induced convective fluid flow.
Shanid Babu Shrestha   +4 more
wiley   +1 more source

Approximation of ill-posed boussinesq equations [PDF]

open access: yesDynamical Systems, 2004
In this paper we compare the dynamics on the centre manifold of the solutions of an ill-posed Boussinesq equation with a well-posed version. We show that the dynamics in the centre manifold of the ill-posed equation tracks the dynamics of the well-posed equation. Our results give partial justification to the long-wave perturbation theory.
Diogo A. Gomes, Claudia Valls
openaire   +1 more source

Stability Estimates of Optimal Solutions for the Steady Magnetohydrodynamics-Boussinesq Equations

open access: yesMathematics
This paper develops the mathematical apparatus of studying control problems for the stationary model of magnetic hydrodynamics of viscous heat-conducting fluid in the Boussinesq approximation.
Gennadii Alekseev, Yuliya Spivak
doaj   +1 more source

Layered Radial Aquifer Model for Open‐Pit Mine Closure with Managed Aquifer Recharge

open access: yesGroundwater, EarlyView.
A radially symmetric layered aquifer model (unconfined–aquitard–confined) coupled to a pit‐lake water balance is developed to screen managed aquifer recharge (MAR) after open‐pit mine closure. Dimensionless type curves quantify trade‐offs between pit recovery time, pumping/recycling, and unconfined mounding as functions of aquifer time scales, aquitard
Behzad Ataie Ashtiani
wiley   +1 more source

Effect of shape and sizes of a local heat source on convective heat transfer in a square cavity [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
Numerical analysis of the effects of the local heat source shape on transient natural convection in a square enclosure has been carried out. The local heat source has rectangular, triangular and trapezoidal shape. The boundary value problem formulated in
N. S. Gibanov   +1 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

Scattering Of Internal Waves By Vertical Barrier In A Channel Of Stratified Fluid

open access: yesInternational Journal of Applied Mechanics and Engineering, 2015
The problem of two dimensional internal wave scattering by a vertical barrier in the form of a submerged plate, or a thin wall with a gap in an exponentially stratified fluid of uniform finite depth bounded by a rigid plane at the top, is considered in ...
P. Dolai
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

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