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相关论文: Regularity results for viscous 3D Boussinesq tempe…

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We derive an improved rigorous bound on the space and time averaged temperature $<T>$ of an infinite Prandtl number Boussinesq fluid contained between isothermal no-slip boundaries thermally driven by uniform internal heating. A novel…

流体动力学 · 物理学 2015-05-27 Jared P. Whitehead , Charles R. Doering

This article explores the stability of stratified Couette flow in the viscous $3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal…

偏微分方程分析 · 数学 2024-02-26 Michele Coti Zelati , Augusto Del Zotto , Klaus Widmayer

In this paper, we establish the global well-posedness of the incompressible magnetohydrodynamics (MHD) system on $n-$dimensional $(n\geq 2)$ periodic boxes with either no magnetic diffusivity (non-resistive case) or no fluid viscosity…

偏微分方程分析 · 数学 2026-02-05 Quansen Jiu , Yaowei Xie , Zhihong Yan

We derive a novel thermodynamically consistent Navier--Stokes--Cahn--Hilliard system with dynamic boundary conditions. This model describes the motion of viscous incompressible binary fluids with different densities. In contrast to previous…

偏微分方程分析 · 数学 2023-10-25 Andrea Giorgini , Patrik Knopf

We study the asymptotic long-time behavior of Darcy--Boussinesq convection in layered porous media with narrow transition zones in the material properties. As the transition-layer width tends to zero, we prove the upper semi-continuous…

偏微分方程分析 · 数学 2026-03-03 Kaijian Sha , Xiaoming Wang , Hao Wu

Transition from steady to oscillatory buoyancy convection of air in a laterally heated cubic box is studied numerically by straight-forward time integration of Boussinesq equations using a series of gradually refined finite volume grids.…

流体动力学 · 物理学 2017-04-28 Alexander Gelfgat

We study the global existence issue for the two-dimensional Boussinesq system with horizontal viscosity in only one equation. We first examine the case where the Navier-Stokes equation with no vertical viscosity is coupled with a transport…

偏微分方程分析 · 数学 2013-02-27 Raphaël Danchin , Marius Paicu

In this manuscript, we consider the $3$D Boussinesq equations for stably stratified fluids with the horizontal viscosity and thermal diffusivity and investigate the large time behavior of the solutions. Making use of the anisotropic…

偏微分方程分析 · 数学 2024-10-14 Mikihiro Fujii , Yang Li

This paper concerns the global-in-time evolution of a generic compressible two-fluid model in $\mathbb{R}^d$ ($d\geq3$) with the common pressure law. Due to the non-dissipative properties for densities and two different particle paths…

偏微分方程分析 · 数学 2025-02-11 Ling-Yun Shou , Jiayan Wu , Lei Yao , Yinghui Zhang

The problem of understanding fundamental physical constants was discussed in particle physics, astronomy and cosmology. Here, I show that a new insight comes from condensed matter physics and liquid physics in particular: fundamental…

软凝聚态物质 · 物理学 2023-08-25 K. Trachenko

The Boussinesq approximation is a cornerstone of geophysical fluid dynamics, yet its thermodynamic and energetic underpinnings have remained ambiguous. In standard formulations, the links with the fully compressible Navier--Stokes equations…

流体动力学 · 物理学 2025-12-23 R. Tailleux , T. Dubos , B. J. Hatton

We show that buoyancy driven flows can be steered in an arbitrary time towards any state by applying as control only an external temperature profile in a subset of small measure. More specifically, we prove that the 2D incompressible…

偏微分方程分析 · 数学 2025-10-01 Vahagn Nersesyan , Manuel Rissel

This paper presents (Lagrangian) variational formulations for single and multicomponent semi-compressible fluids with both reversible (entropy-conserving) and irreversible (entropy-generating) processes. Semi-compressible fluids are useful…

流体动力学 · 物理学 2021-09-01 Christopher Eldred , François Gay-Balmaz

Motivated by understanding the dynamics of stellar and planetary interiors, we have performed a set of direct numerical simulations of Boussinesq convection in a rotating full sphere. The domain is internally heated with fixed temperature…

流体动力学 · 物理学 2021-05-05 Yufeng Lin , Andrew Jackson

New insight into the contribution of the microscale vortex evolution towards convection heat transfer in porous media is presented in this paper. The objective is to determine how the microscale vortices influence convection heat transfer…

流体动力学 · 物理学 2022-06-01 Ching-Wei Huang , Vishal Srikanth , Andrey V. Kuznetsov

Thin viscous Keplerian accretion disks are considered asymptotically stable, even though they can show significant dynamic activity on short timescales. In this paper the dynamics of non-axisymmetric hydrodynamical disturbances of disks are…

高能天体物理现象 · 物理学 2015-05-13 Paola Rebusco , Orkan M. Umurhan , Wlodek Kluzniak , Oded Regev

We present a numerical study of a model of pattern formation following a convective instability in a non-Boussinesq fluid. It is shown that many of the features observed in convection experiments conducted on $CO_{2}$ gas can be reproduced…

凝聚态物理 · 物理学 2009-10-22 Hao-wen Xi , Jorge Vinals , J. D. Gunton

In this paper we deal with the long time existence for the Cauchy problem associated to BBM-type Boussinesq systems of equations which are asymptotic models for long wave, small amplitude gravity surface water waves. As opposed to previous…

偏微分方程分析 · 数学 2016-03-11 Cosmin Burtea

We present regularity results for nonlinear drift-diffusion equations of porous medium type (together with their incompressible limit). We relax the assumptions imposed on the drift term with respect to previous results and additionally…

偏微分方程分析 · 数学 2024-05-14 Noemi David , Filippo Santambrogio , Markus Schmidtchen

We derive a Thermodynamic Uncertainty Relation bounding the mean squared displacement of a Gaussian process with memory, driven out of equilibrium by unbalanced thermal baths and/or by external forces. Our bound is tighter with respect to…

统计力学 · 物理学 2023-05-23 Andrea Plati , Andrea Puglisi , Alessandro Sarracino