Results 61 to 70 of about 1,072,644 (236)

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

Unsteady Flow of a Nanofluid over a Sphere with Nonlinear Boussinesq Approximation

open access: yesJournal of thermophysics and heat transfer, 2019
A theoretical study is presented for transient mixed convection flow of a nanofluid in the forward stagnation region of a heated sphere that is rotating with time-dependent angular velocity, taking...
B. Vasu   +5 more
semanticscholar   +1 more source

Two-layer interfacial flows beyond the Boussinesq approximation: a Hamiltonian approach [PDF]

open access: yes, 2015
The theory of integrable systems of Hamiltonian PDEs and their near-integrable deformations is used to study evolution equations resulting from vertical-averages of the Euler system for two-layer stratified flows in an infinite two-dimensional channel ...
R. Camassa, G. Falqui, G. Ortenzi
semanticscholar   +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

The Validity of Whitham's Approximation for a Klein--Gordon--Boussinesq Model [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2016
In this paper we prove the validity of a long wave Whitham approximation for a system consisting of a Boussinesq equation coupled with a Klein-Gordon equation. The proof is based on an infinite series of normal form transformations and an energy estimate.
Wolf-Patrick Düll   +2 more
openaire   +3 more sources

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

The Liquid Film Flow with Evaporation: Numerical Modelling

open access: yesMATEC Web of Conferences, 2016
The flow of thin liquid layer on an inclined substrate is investigated numerically. The mathematical modelling is based on the Oberbeck-Boussinesq equations and the generalized conditions on the thermocapillary boundary simplified during the parametrical
Rezanova Ekaterina
doaj   +1 more source

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

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

Explicit Solutions of a Gravity-Induced Film Flow along a Convectively Heated Vertical Wall

open access: yesThe Scientific World Journal, 2013
The gravity-driven film flow has been analyzed along a vertical wall subjected to a convective boundary condition. The Boussinesq approximation is applied to simplify the buoyancy term, and similarity transformations are used on the mathematical model of
Ammarah Raees, Hang Xu
doaj   +1 more source

Home - About - Disclaimer - Privacy