数学物理学报 ›› 2021, Vol. 41 ›› Issue (2): 357-369.

• 论文 • 上一篇    下一篇

具有非线性阻尼的Navier-Stokes-Voigt方程的拉回吸引子

彭小明1,郑筱筱2,尚亚东3,*()   

  1. 1 广东财经大学统计与数学学院 广州 510320
    2 曲阜师范大学数学科学学院 山东曲阜 273155
    3 广州大学数学与信息科学学院 广州 510006
  • 收稿日期:2020-03-23 出版日期:2021-04-26 发布日期:2021-04-29
  • 通讯作者: 尚亚东 E-mail:gzydshang@126.com

Pullback Attractors for Navier-Stokes-Voigt Equations with Nonlinear Damping

Xiaoming Peng1,Xiaoxiao Zheng2,Yadong Shang3,*()   

  1. 1 School of Statistics and Mathematics, Guangdong University of Finance and Economics, Guangzhou 510320
    2 School of Mathematical Sciences, Qufu Normal University, Shandong Qufu 273155
    3 School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006
  • Received:2020-03-23 Online:2021-04-26 Published:2021-04-29
  • Contact: Yadong Shang E-mail:gzydshang@126.com

摘要:

该文研究具有非线性阻尼的非自治Navier-Stokes-Voigt方程的长时间动力学.首先,利用Galerkin方法证明了整体弱解的存在唯一性.然后,利用能量方法建立解过程的一致渐近紧性,从而证明了拉回吸引子的存在性.此外,还建立了固定有界集族上的吸引子与满足缓增条件的集族上的吸引子之间的关系.

关键词: 拉回吸引子, 非自治, Navier-Stokes-Voigt方程, 非线性阻尼

Abstract:

In this paper, we are concerned with the long-time behavior of solutions to the non-autonomous Navier-Stokes-Voigt equations with nonlinear damping. Firstly, we prove the existence and uniqueness of global weak solutions by the Galerkin method. Then, we focus on studying the existence of pullback attractors by using an energy method, which is more simple than the weak continuous method to establish the uniformly asymptotical compactness. In addition, some relationships between the attractors for the universe of fixed bounded sets and those associated to a universe given by another tempered condition are established.

Key words: Pullback attractors, Non-autonomous, Navier-Stokes-Voigt equation, Nonlinear damping

中图分类号: 

  • O175.26