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In this paper, we prove the global existence of small smooth solutions to the three-dimensional incompressible Oldroyd-B model without damping on the stress tensor. The main difficulty is the lack of full dissipation in stress tensor. To…

偏微分方程分析 · 数学 2018-03-20 Yi Zhu

The Cauchy problem of the compressible Oldroyd-B model without damping mechanism in R^n$ with $n\ge2$ is considered. The lack of dissipation in density and stress tensor in the model is compensated by exploiting an intrinsic structure and…

偏微分方程分析 · 数学 2020-03-03 Xiaoping Zhai , Zhi-Min Chen

We study the $d$-dimensional ($d\geq2$) incompressible Oldroyd-B model with only stress tensor diffusion and without velocity dissipation as well as the damping mechanism on the stress tensor. Firstly, based upon some new observations on…

偏微分方程分析 · 数学 2023-05-18 Zhi Chen , Weixun Feng , Qiao Liu

In the first part of this work, we investigate the Cauchy problem for the $d$-dimensional incompressible Oldroyd-B model with dissipation in the stress tensor equation. By developing a weighted Chemin-Lerner framework combined with a…

偏微分方程分析 · 数学 2025-04-18 Tao Liang , Yongsheng Li , Xiaoping Zhai

We obtain the global small solutions to the generalized Oldroyd-B model without damping on the stress tensor in $\mathbb{R}^n$. Our result give positive answers partially to the question proposed by Elgindi and Liu (Remark 2 in Elgindi and…

偏微分方程分析 · 数学 2021-06-29 Xiaoping Zhai , Yuanyuan Dan , Yongsheng Li

In this paper, we prove the global existence of analytical solutions to the compressible Oldroyd-B model without retardation near a non-vacuum equilibrium in ${\mathbb R}^n$ $(n=2,3)$. Zero retardation results in zero dissipation in the…

偏微分方程分析 · 数学 2023-06-01 Xinghong Pan

We start with the compressible Oldroyd--B model derived in \cite{Barrett-Lu-Suli} ({\em J. W. Barrett, Y. Lu, E. S\"uli. Existence of large-data finite-energy global weak solutions to a compressible Oldroyd--B model. Comm. Math. Sci. 15…

偏微分方程分析 · 数学 2019-10-22 Yong Lu , Milan Pokorný

Consider a global wellposed problem for the incompressible Oldroyd-B model. It is shown that this set of equations admits a unique global solution provided the initial horizontal velocity $u^h_0$, the product $\om u^d_0$ of the coupling…

偏微分方程分析 · 数学 2015-09-22 Daoyuan Fang , Ruizhao Zi

By a new energy approach involved in the high frequencies and low frequencies decomposition in the Besov spaces, we obtain the optimal decay for the incompressible Oldroyd-B model without damping mechanism in $\mathbb{R}^n$ ($n\ge 2$). More…

偏微分方程分析 · 数学 2019-05-08 Xiaoping Zhai

We prove the global well-posedness in the critical Besov spaces for the incompressible Oldroyd-B model without damping mechanism on the stress tensor in $\mathbb{R}^d$ for the small initial data. Our proof is based on the observation that…

偏微分方程分析 · 数学 2019-07-24 Qionglei Chen , Xiaonan Hao

In this paper, we prove the global existence of strong solutions for the inhomogeneous incompressible viscoelastic system without any additional structure assumptions on $\mathbb{R}^{3}$. Unlike the time weighted energy method presented by…

偏微分方程分析 · 数学 2026-03-03 Chengfei Ai , Mengxing Bei , Yong Wang

We investigate global strong solutions for the incompressible viscoelastic system of Oldroyd--B type with the initial data close to a stable equilibrium. We obtain the existence and uniqueness of the global solution in a functional setting…

偏微分方程分析 · 数学 2011-02-03 Ting Zhang , Daoyuan Fang

The purpose of this work is to study the global wellposedness and large time behavior results of strong solutions for the compressible Oldroyd-B model derived by Barrett, Lu, S\"uli (Commun. Math. Sci., 15, 1265--1323, 2017). Exploiting the…

偏微分方程分析 · 数学 2021-05-04 Xiaoping Zhai , Yongsheng Li

We present a new regularized Oldroyd-B model in three dimensions which satisfies an energy estimate analogous to that of the standard model, and maintains the positive semi-definiteness of the conformation tensor. This results in the unique…

偏微分方程分析 · 数学 2025-07-14 Jaroslaw S. Jaracz , Young Ju Lee

This paper is dedicated to the Cauchy problem of the incompressible Oldroyd-B model with general coupling constant $\om\in (0,1)$. It is shown that this set of equations admits a unique global solution in a certain hybrid Besov spaces for…

偏微分方程分析 · 数学 2014-10-29 Ruizhao Zi

A compressible Oldroyd--B type model with stress diffusion is derived from a compressible Navier--Stokes--Fokker--Planck system arising in the kinetic theory of dilute polymeric fluids, where polymer chains immersed in a barotropic,…

偏微分方程分析 · 数学 2016-08-16 John W. Barrett , Yong Lu , Endre Süli

In this paper, we consider global strong solutions and uniform-in-time vanishing damping limit for the inviscid Oldroyd-B model in R^d, where d=2 and 3. The well-recognized problem of the global existence of smooth solutions for the 2D…

偏微分方程分析 · 数学 2024-10-15 Xinyu Cheng , Zhaonan Luo , Zhaojie Yang , Cheng Yuan

This paper studies the global well-posedness and optimal decay estimates to the Oldroyd-B model in $\mathbb R^d$ ($d\geq2$). By utilizing the special structure of this system, we give a simplified proof to the global existence of solutions…

偏微分方程分析 · 数学 2025-02-03 Haifeng Shang

We consider the Cauchy problem ($\mathbb{R}^d, d=2,3$) and the initial boundary values problem ($\mathbb{T}^d, d=2,3$)associated to the compressible Oldroyd-B model which is first derived by Barrett, Lu and S\"{u}li [Existence of large-data…

偏微分方程分析 · 数学 2024-08-29 Yajuan Zhao , Yongsheng Li , Tao Liang , Xiaoping Zhai

In this paper, we prove the global existence of strong solutions for the 3D incompressible inhomogeneous viscoelastic system. We do not assume the "initial state" assumption and the "div-curl" structure inspired by the works [59,61]. It is…

偏微分方程分析 · 数学 2024-03-04 Chengfei Ai , Yong Wang
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