Results 11 to 20 of about 1,393 (185)
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 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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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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Alexandria 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
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Incompressible flows and the Boussinesq approximation: 50 years of CFD
Comptes Rendus. Mécanique, 2022 We offer a synthetic exposition on the state of the art for Computational Fluid Dynamics (CFD) relevant to the Navier–Stokes equations with the Boussinesq approximation, smoothly blending a history of the field with an accessible exposition of the ...
Lappa, Marcello
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On the numerical approximation of Boussinesq/Boussinesq systems for internal waves
Numerical Methods for Partial Differential Equations, 2023 AbstractThe present paper is concerned with the numerical approximation of a three‐parameter family of Boussinesq systems. The systems have been proposed as models of the propagation of long internal waves along the interface of a two‐layer system of fluids with rigid‐lid condition for the upper layer and under a Boussinesq regime for the flow in both ...
Dougalis, Vassilios A. +2 more
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Case Studies in Thermal Engineering, 2021 Numerical simulations are performed for the mixed convective transport in an inclined open arc-shaped channel filled by isotropic porous media using nanofluids.
Sameh E. Ahmed +2 more
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Numerical Comparative Study of Compressible and Incompressible Models for Predicting Combined Natural Convection and Radiation in Participating Medium [PDF]
Journal of Applied Fluid MechanicsNatural convection coupled with volumetric radiation governs heat transfer in high-temperature systems, yet modeling relies heavily on the Boussinesq approximation, limited to weak density variations.
N. Rachedi, M. Guellal, M. Bouafia
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Adomian Decomposition and Successive Approximation Methods for Solving Kaup-Boussinesq System
Science Journal of University of Zakho, 2019 The Kaup-Boussinesq system has been solved numerically by using two methods, Successive approximation method (SAM) and Adomian decomposition method (ADM).
Saad A. Manaa, Nergiz M. Mosa
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Capturing the baroclinic effect in non-Boussinesq gravity currents
Theoretical and Applied Mechanics Letters, 2022 Direct numerical simulations of two-dimensional gravity currents with small and medium density variations are performed using different non-Boussinesq buoyancy approximations.
Shengqi Zhang, Zhenhua Xia
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