The role of boundary conditions in scaling laws for turbulent heat transport

C Nobili - arxiv preprint arxiv:2112.15564, 2021 - arxiv.org
In most results concerning bounds on the heat transport in the Rayleigh-B\'{e} nard
convection problem no-slip boundary conditions for the velocity field are assumed …

Data assimilation in large Prandtl Rayleigh--Bénard convection from thermal measurements

A Farhat, NE Glatt-Holtz, VR Martinez… - SIAM Journal on Applied …, 2020 - SIAM
This work applies a continuous data assimilation scheme---a framework for reconciling
sparse and potentially noisy observations to a mathematical model---to Rayleigh--Bénard …

Theoretical and computational analysis of the thermal quasi-geostrophic model

D Crisan, DD Holm, E Luesink, PR Mensah… - Journal of nonlinear …, 2023 - Springer
This work involves theoretical and numerical analysis of the thermal quasi-geostrophic
(TQG) model of submesoscale geophysical fluid dynamics (GFD). Physically, the TQG model …

Global well-posedness for the 2D Euler-Boussinesq-Bénard equations with critical dissipation

Z Ye - Journal of Differential Equations, 2024 - Elsevier
This present paper is dedicated to the study of the Cauchy problem of the two-dimensional
Euler-Boussinesq-Bénard equations which couple the incompressible Euler equations for …

Data assimilation with higher order finite element interpolants

MS Jolly, A Pakzad - … Journal for Numerical Methods in Fluids, 2023 - Wiley Online Library
The efficiency of a nudging data assimilation algorithm using higher order finite element
interpolating operators is studied. Numerical experiments are presented for the 2D Navier …

Unconditional stability of equilibria in thermally driven compressible fluids

E Feireisl, Y Lu, Y Sun - Archive for Rational Mechanics and Analysis, 2024 - Springer
We show that small perturbations of the spatially homogeneous equilibrium of a thermally
driven compressible viscous fluid are globally stable. Specifically, any weak solution of the …

Regularity criteria for the Kuramoto–Sivashinsky equation in dimensions two and three

A Larios, MM Rahman, K Yamazaki - Journal of Nonlinear Science, 2022 - Springer
We propose and prove several regularity criteria for the 2D and 3D Kuramoto–Sivashinsky
equation, in both its scalar and vector forms. In particular, we examine integrability criteria for …

On the reconstruction of unknown driving forces from low-mode observations in the 2D Navier–Stokes equations

VR Martinez - Proceedings of the Royal Society of Edinburgh …, 2024 - cambridge.org
This article is concerned with the problem of determining an unknown source of non-
potential, external time-dependent perturbations of an incompressible fluid from large-scale …

Continuous data assimilation for two-phase flow: analysis and simulations

YT Chow, WT Leung, A Pakzad - Journal of Computational Physics, 2022 - Elsevier
We propose, analyze, and test a novel continuous data assimilation two-phase flow
algorithm for reservoir simulation. We show that the solutions of the algorithm, constructed …

The Rayleigh–Bénard problem for compressible fluid flows

E Feireisl, A Świerczewska-Gwiazda - Archive for Rational Mechanics and …, 2023 - Springer
We consider the physically relevant fully compressible setting of the Rayleigh–Bénard
problem of a fluid confined between two parallel plates, heated from the bottom, and …