Results 11 to 20 of about 1,429 (181)
On the Use and Misuse of the Oberbeck–Boussinesq Approximation
Physics, 2023 The Oberbeck–Boussinesq approximation is the most commonly employed theoretical scheme for the study of natural or mixed convection flows. However, the misunderstanding of this approximated framework is a possibility that may cause the emergence of ...
Antonio Barletta +2 more
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Beyond the Oberbeck–Boussinesq and long wavelength approximation [PDF]
Nuclear Fusion, 2022 We present the first simulations of a reduced magnetized plasma model that incorporates both arbitrary wavelength polarization and non-Oberbeck–Boussinesq effects.
M. Held, M. Wiesenberger
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Heliyon, 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.
Samuel Okoya, Sunday Iyiola Opadiran
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Energetics of internal solitary waves in a background sheared current [PDF]
Nonlinear 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
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Algorithms, 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
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Some aspects in Kelvin-Helmholtz instability with and without Boussinesq approximation [PDF]
INCAS 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
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Wave Energy Dissipation of Spilling and Plunging Breaking Waves in Spectral Models
Journal 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
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Two Types of Waves in a Two-Layer Stratified Fluid
Vestnik 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.
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The Oberbeck–Boussinesq approximation in critical spaces [PDF]
Asymptotic 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
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The Oberbeck–Boussinesq approximation as a constitutive limit [PDF]
Continuum 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
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