Results 1 to 10 of about 2,783 (131)

Regularity for 3-D MHD Equations in Lorentz Space $L^{3,∞}$

open access: yesCommunications in Mathematical Research, 2023
The regularity for 3-D MHD equations is considered in this paper, it is proved that the solutions (v,B,p) are Hölder continuous if the velocity field v∈L∞(0,T;L x (R 3)) with local small condition r ∣∣ { x∈Br(x0) : |v(x,t0)|> εr −1 ∣∣≤ ε and the magnetic
Xian-gao Liu, Yueli Liu, Zixuan Liu
semanticscholar   +1 more source

A Colocalized Scheme for Three-Temperature Grey Diffusion Radiation Hydrodynamics

open access: yesCommunications in Computational Physics, 2022
A positivity-preserving, conservative and entropic numerical scheme is presented for the three-temperature grey diffusion radiation hydrodynamics model.
R. Chauvin
semanticscholar   +1 more source

Stratified Radiative Transfer in a Fluid and Numerical Applications to Earth Science

open access: yesSIAM Journal on Numerical Analysis, 2022
New mathematical results are given for the Radiative Transfer equations alone and coupled with the temperature equation of a fluid: existence, uniqueness, a maximum principle and a convergent monotone iterative scheme.
F. Golse, O. Pironneau
semanticscholar   +1 more source

Zero Viscosity-Diffusivity Limit for the Incompressible Boussinesq Equations in Gevrey Class

open access: yesCommunications in Mathematical Research, 2022
In this paper, we study the zero viscosity-diffusivity limit for the incompressible Boussinesq equations in a periodic domain in the framework of Gevrey class. We first prove that there exists an interval of time, independent of the viscosity coefficient
F. Cheng
semanticscholar   +1 more source

Stability estimate for the semi-discrete linearized Benjamin-Bona-Mahony equation

open access: yes, 2021
In this work we study the semi-discrete linearized Benjamin-Bona-Mahony equation (BBM) which is a model for propagation of one-dimensional, unidirectional, small amplitude long waves in non-linear dispersive media.
R. Lecaros   +2 more
semanticscholar   +1 more source

Effect of magnetic field on Newtonian fluid sandwiched between non-Newtonian fluids through porous cylindrical shells

open access: yes, 2021
The present work deals with the influence of magnetic field on Newtonian fluid sandwiched between two porous cylindrical pipes which are filled with micropolar fluids.
D. Maurya, S. Deo
semanticscholar   +1 more source

On the statistical properties of the 3D incompressible Navier-Stokes-Voigt model [PDF]

open access: yes, 2009
The Navier-Stokes-Voigt (NSV) model of viscoelastic incompressible fluid has been recently proposed as a regularization of the 3D NavierStokes equations for the purpose of direct numerical simulations.
B. Levant, Fabio Ramos, E. Titi
semanticscholar   +1 more source

Mathematical Modeling and Simulation of Antibubble Dynamics

open access: yesNumerical Mathematics: Theory, Methods and Applications, 2020
In this study, we propose a mathematical model and perform numerical simulations for the antibubble dynamics. An antibubble is a droplet of liquid surrounded by a thin film of a lighter liquid, which is also in a heavier surrounding fluid.
global sci
semanticscholar   +1 more source

Global well-posedness for the critical 2D dissipative quasi-geostrophic equation [PDF]

open access: yes, 2006
We give an elementary proof of the global well-posedness for the critical 2D dissipative quasi-geostrophic equation. The argument is based on a non-local maximum principle involving appropriate moduli of continuity.Comment: 7 ...
A. Cordoba   +8 more
core   +2 more sources

The continuum limit of Follow-the-Leader models - a short proof [PDF]

open access: yes, 2017
We offer a simple and self-contained proof that the Follow-the-Leader model converges to the Lighthill-Whitham-Richards model for traffic ...
Holden, Helge, Risebro, Nils Henrik
core   +2 more sources

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