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author:

Jiang, Fei (Jiang, Fei.) [1] (Scholars:江飞) | Jiang, Song (Jiang, Song.) [2]

Indexed by:

SCIE

Abstract:

This paper is concerned with the asymptotic behaviors of global strong solutions to the incompressible non-resistive viscous magnetohydrodynamic (MHD) equations with large initial perturbations in two-dimensional periodic domains in Lagrangian coordinates. First, motivated by the odevity conditions imposed in Pan et al. (2018) [24], we prove the existence and uniqueness of strong solutions under some class of large initial perturbations, where the strength of impressive magnetic fields depends increasingly on the H-2-norm of the initial perturbation value of both the velocity and magnetic field. Then, we establish time-decay rates of strong solutions. Moreover, we find that H-2-norm of the velocity decays faster than the perturbed magnetic field. Finally, by developing some new analysis techniques, we show that the strong solution converges in a rate of the field strength to a solution of the corresponding linearized problem as the strength of the impressive magnetic field goes to infinity. In addition, an extension of similar results to the corresponding inviscid case with damping is presented. (C) 2021 Elsevier Inc. All rights reserved.

Keyword:

Algebraic time-decay Damping Decay in the field strength Exponential time-decay Incompressible MHD fluids Viscosity vanishing limit

Community:

  • [ 1 ] [Jiang, Fei]Fuzhou Univ, Sch Math & Stat, Fuzhou 350108, Peoples R China
  • [ 2 ] [Jiang, Song]Inst Appl Phys & Computat Math, Huayuan Rd 6, Beijing 100088, Peoples R China
  • [ 3 ] [Jiang, Fei]Key Lab Operat Res & Control Univ Fujian, Fuzhou 350108, Peoples R China

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Source :

ADVANCES IN MATHEMATICS

ISSN: 0001-8708

Year: 2021

Volume: 393

1 . 6 7 5

JCR@2021

1 . 5 0 0

JCR@2023

ESI Discipline: MATHEMATICS;

ESI HC Threshold:36

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 25

SCOPUS Cited Count: 19

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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