Results 11 to 20 of about 3,173,665 (255)

Nonlinear inviscid damping and shear‐buoyancy instability in the two‐dimensional Boussinesq equations [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2021
We investigate the long‐time properties of the two‐dimensional inviscid Boussinesq equations near a stably stratified Couette flow, for an initial Gevrey perturbation of size ε.
J. Bedrossian   +3 more
semanticscholar   +1 more source

Robust output regulation of the linearized Boussinesq equations with boundary control and observation [PDF]

open access: yesMCSS. Mathematics of Control, Signals and Systems, 2020
We study a temperature and velocity output tracking problem for a two-dimensional room model with the fluid dynamics governed by the linearized translated Boussinesq equations. Additionally, the room model includes finite-dimensional models for actuation
N. Leppla   +32 more
semanticscholar   +1 more source

A Regularity Criterion in Weak Spaces to Boussinesq Equations [PDF]

open access: yesMathematics, 2020
In this paper, we study the regularity of weak solutions to the incompressible Boussinesq equations in R 3 × ( 0 , T ) . The main goal is to establish the regularity criterion in terms of one velocity component and the gradient of temperature in Lorentz ...
R. Agarwal, S. Gala, M. Ragusa
semanticscholar   +1 more source

Numerical and analytical study of undular bores governed by the full water wave equations and bidirectional Whitham–Boussinesq equations

open access: yesThe Physics of Fluids, 2021
Undular bores, also termed dispersive shock waves, generated by an initial discontinuity in height as governed by two forms of the Boussinesq system of weakly nonlinear shallow water wave theory, the standard formulation and a Hamiltonian formulation ...
R. Vargas-Magaña   +2 more
semanticscholar   +1 more source

Convergence of stochastic 2D inviscid Boussinesq equations with transport noise to a deterministic viscous system [PDF]

open access: yesNonlinearity, 2020
The inviscid 2D Boussinesq system with thermal diffusivity and multiplicative noise of transport type is studied in the L 2-setting. It is shown that, under a suitable scaling of the noise, weak solutions to the stochastic 2D Boussinesq equations ...
Dejun Luo
semanticscholar   +1 more source

Stable nearly self-similar blowup of the 2D Boussinesq and 3D Euler equations with smooth data II: Rigorous Numerics [PDF]

open access: yesarXiv.org, 2023
This is Part II of our paper in which we prove finite time blowup of the 2D Boussinesq and 3D axisymmetric Euler equations with smooth initial data of finite energy and boundary.
Jiajie Chen, T. Hou
semanticscholar   +1 more source

On the Boussinesq Equations with Non-monotone Temperature Profiles [PDF]

open access: yesJournal of nonlinear science, 2020
In this article, we consider the asymptotic stability of the two-dimensional Boussinesq equations with partial dissipation near a combination of Couette flow and temperature profiles T(y).
C. Zillinger
semanticscholar   +1 more source

On the periodic “good” Boussinesq equation [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We study the well-posedness of the initial-value problem for the periodic nonlinear “good” Boussinesq equation. We prove that this equation is locally well posed for initial data in Sobolev spaces H s ( T ) H^s(\mathbb {T}) for s > −
Farah, Luiz Gustavo, Scialom, Márcia
openaire   +3 more sources

Regularity criteria via horizontal component of velocity for the Boussinesq equations in anisotropic Lorentz spaces

open access: yesDemonstratio Mathematica, 2023
In this article, we study the regularity criteria of the weak solutions to the Boussinesq equations involving the horizontal component of velocity or the horizontal derivatives of the two components of velocity in anisotropic Lorentz spaces.
Agarwal Ravi P.   +3 more
doaj   +1 more source

The regularity properties and blow-up of the solutions for improved Boussinesq equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we study the Cauchy problem for linear and nonlinear Boussinesq type equations that include the general differential operators. First, by virtue of the Fourier multipliers, embedding theorems in Sobolev and Besov spaces, the existence ...
Veli Shakhmurov, Rishad Shahmurov
doaj   +1 more source

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