Results 11 to 20 of about 1,385 (181)

Deep neural network-based prediction of tsunami wave attenuation by mangrove forests [PDF]

open access: yesMethodsX
The goal of this research is to develop a model employing deep neural networks (DNNs) to predict the effectiveness of mangrove forests in attenuating the impact of tsunami waves.
Didit Adytia   +6 more
doaj   +2 more sources

Simulation of Low-Speed Buoyant Flows with a Stabilized Compressible/Incompressible Formulation: The Full Navier–Stokes Approach versus the Boussinesq Model

open access: yesAlgorithms, 2022
This paper compares two strategies to compute buoyancy-driven flows using stabilized methods. Both formulations are based on a unified approach for solving compressible and incompressible flows, which solves the continuity, momentum, and total energy ...
Guillermo Hauke, Jorge Lanzarote
doaj   +1 more source

Energetics of internal solitary waves in a background sheared current [PDF]

open access: yesNonlinear Processes in Geophysics, 2010
The energetics of internal waves in the presence of a background sheared current is explored via numerical simulations for four different situations based on oceanographic conditions: the nonlinear interaction of two internal solitary waves; an internal ...
K. G. Lamb
doaj   +1 more source

Some aspects in Kelvin-Helmholtz instability with and without Boussinesq approximation [PDF]

open access: yesINCAS Bulletin, 2021
The topic of this paper is the Kelvin-Helmholtz instability, a phenomenon which occurs on the interface of a stratified fluid, in the presence of a parallel shear flow, when there is a velocity and density difference across the interface of two adjacent ...
Ilinca-Laura BURDULEA, Alina BOGOI
doaj   +1 more source

Wave Energy Dissipation of Spilling and Plunging Breaking Waves in Spectral Models

open access: yesJournal of Marine Science and Engineering, 2022
On the basis of field experiments and modeling, the dependence of the dissipation of the energy of waves breaking by plunging and spilling on the frequency of wave spectra was investigated. It was shown that the modeling of wave breaking should take into
Yana Saprykina   +2 more
doaj   +1 more source

Importance of convective boundary layer flows with inhomogeneous material properties under linear and quadratic Boussinesq approximations around a horizontal cylinder

open access: yesHeliyon, 2021
This study investigates boundary layer flows with inhomogeneous material properties driven by natural convection using linear and quadratic Boussinesq approximations around a horizontal cylinder.
Sunday Iyiola Opadiran   +1 more
doaj   +1 more source

Two Types of Waves in a Two-Layer Stratified Fluid

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
Within the framework of the linear theory of small potential oscillations the article studies the structure and characteristics of internal and surface waves in a two-layer stably stratified fluid.
Rudenko, A.I.
doaj   +1 more source

The Oberbeck–Boussinesq approximation as a constitutive limit [PDF]

open access: yesContinuum Mechanics and Thermodynamics, 2015
We derive the usual Oberbeck--Boussinesq approximation as a constitutive limit of the full system describing the motion of an compressible linearly viscous fluid. To this end the starting system is written, using the Gibbs free energy, in the variables $\mathbf v, θ$ and $p$.
Yoshiyuki Kagei, Ruzicka Michael
openaire   +3 more sources

The Oberbeck–Boussinesq approximation in critical spaces [PDF]

open access: yesAsymptotic Analysis, 2013
In this paper we study the validity of the so-called Oberbeck–Boussinesq approximation for compressible viscous perfect gases in the whole three-dimensional space. Both the cases of fluids with positive heat conductivity and zero conductivity are considered.
Danchin, Raphaël, He, Lingbing
openaire   +3 more sources

Assessment of several modeling strategies on the prediction of lift-drag coefficients of a NACA0012 airfoil at a moderate Reynold number

open access: yesAlexandria Engineering Journal, 2022
This paper investigates modelling strategies on the prediction of lift and drag coefficients of a NACA0012 airfoil at Reynolds number of 360,000. Two computational methods are employed; namely Navier-Stokes equation and panel method, by using different ...
K.M. Almohammadi
doaj   +1 more source

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