Acta mathematica scientia,Series B ›› 2023, Vol. 43 ›› Issue (3): 1301-1322.doi: 10.1007/s10473-023-0317-y

Previous Articles     Next Articles

GLOBAL WELL-POSEDNESS AND OPTIMAL TIME DECAY RATES FOR THE GENERALIZED PHAN-THIEN-TANNER MODEL IN ${\mathbb{R}}^{3}$*

Yuhui Chen1, Qinghe Yao1, Minling Li2,†, Zheng-an Yao2   

  1. 1. School of Aeronautics and Astronautics, Sun Yat-sen University, Guangzhou 510275, China;
    2. School of Mathematics, Sun Yat-sen University, Guangzhou 510275, China
  • Received:2022-02-11 Revised:2022-06-10 Online:2023-06-25 Published:2023-06-06
  • Contact: Minling Li, E-mail: limling3@mail2.sysu.edu.cn
  • About author:Yuhui Chen, E-mail: chenyh339@mail.sysu.edu.cn; Qinghe Yao, E-mail: yaoqhe@mail.sysu.edu.cn;Zheng-an Yao,E-mail: mcsyao@mail.sysu.edu.cn
  • Supported by:
    Yuhui Chen was supported by the NNSF of China (12201655); Qinghe Yao was supported by the NNSF of China (11972384) and the Guangdong Science and Technology Fund (2021B1515310001); Zheng-an Yao was supported by the NNSF of China (11971496) and the National Key R&D Program of China (2020YFA0712500).

Abstract: In this paper, we consider the initial value problem for the incompressible generalized Phan-Thien-Tanner (GPTT) model. This model pertains to the dynamic properties of polymeric fluids. Under appropriate assumptions on smooth function $f$, we find a particular solution to the GPTT model. In dimension three, we establish the global existence and the optimal time decay rates of strong solutions provided that the initial data is close to the particular solution. The results which are presented here are generalizations of the network viscoelastic models.

Key words: viscoelastic fluids, global well-posedness, decay rates

Trendmd