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We show existence and uniqueness for small data of regular time-periodic solutions to the Navier-Stokes problem in the exterior of a rigid body, $\mathscr B$, that moves by time-periodic translational motion of the same period along a…

偏微分方程分析 · 数学 2020-06-08 Giovanni P. Galdi

We study existence, uniqueness and asymptotic spatial behavior of time-periodic strong solutions to the Navier-Stokes equations in the exterior of a rigid body, $\mathscr B$, moving by time-periodic motion of given period $T$, when the data…

偏微分方程分析 · 数学 2022-03-23 Giovanni P. Galdi

Existence, uniqueness, and regularity of time-periodic solutions to the Navier-Stokes equations in the three-dimensional whole-space are investigated. We consider the Navier-Stokes equations with a non-zero drift term corresponding to the…

偏微分方程分析 · 数学 2015-06-17 Mads Kyed

We study the spatial decay of time-periodic Navier-Stokes flow at the rate $|x|^{-1}$ with/without wake structure in 3D exterior domains when a rigid body moves periodically in time. In this regime the existence of time-periodic solutions…

偏微分方程分析 · 数学 2022-09-13 Toshiaki Hishida

We study existence, uniqueness, regularity and asymptotic spatial behavior of a Navier-Stokes flow past a body moving by a time-periodic translational motion of period $T$, and with zero average. For example, $\mathscr B$ moves in an…

偏微分方程分析 · 数学 2020-07-15 Giovanni P. Galdi

A body $\mathscr B$ moves in an unbounded Navier-Stokes liquid by time-independent translatory motion. Suppose that at time $t=0$, $\mathscr B$ smoothly changes its motion to an arbitrary rigid motion, reached at time $t=1$. We then show…

偏微分方程分析 · 数学 2026-05-08 Giovanni P. Galdi , Toshiaki Hishida

Time-periodic solutions to the Navier-Stokes equations that govern the flow of a viscous liquid past a three-dimensional body moving with a time-periodic velocity are investigated. The net motion of the body over a full time-period is…

偏微分方程分析 · 数学 2016-10-03 Giovanni P. Galdi , Mads Kyed

A body $\mathscr B$ is started from rest by translational motion in an otherwise quiescent Navier-Stokes liquid filling the whole space. We show, for small data, that if after some time $\mathscr B$ reaches a spinless oscillatory motion of…

偏微分方程分析 · 数学 2020-01-22 Giovanni P. Galdi , Toshiaki Hishida

Let $\mathcal B$ be a sufficiently smooth rigid body (compact set of $\mathbb R^3$) of arbitrary shape moving in an unbounded Navier-Stokes liquid under the action of prescribed external force, $\textup{F}$, and torque, $\textup{M}$. We…

偏微分方程分析 · 数学 2023-05-31 Giovanni P. Galdi

We study the nonhomogeneous boundary value problem for the Navier--Stokes equations of steady motion of a viscous incompressible fluid in a three--dimensional exterior domain with multiply connected boundary. We prove that this problem has…

偏微分方程分析 · 数学 2014-03-28 Mikhail Korobkov , Konstantin Pileckas , Remigio Russo

Consider the time-periodic viscous incompressible fluid flow past a body with non-zero velocity at infinity. This article gives sufficient conditions such that weak solutions to this problem are smooth. Since time-periodic solutions do not…

偏微分方程分析 · 数学 2022-12-02 Thomas Eiter

We prove existence of a unique global-in-time weak solutions of the Navier-Stokes equations that govern the motion of a compressible viscous fluid with density-dependent viscosity in two-dimensional space. The initial velocity belongs to…

偏微分方程分析 · 数学 2024-09-18 Sagbo Marcel Zodji

We develop mathematical methods which allow us to study asymptotic properties of solutions to the three dimensional Navier-Stokes system for incompressible fluid in the whole three dimensional space. We deal either with the Cauchy problem…

偏微分方程分析 · 数学 2020-12-24 Marco Cannone , Grzegorz Karch , Dominika Pilarczyk , Gang Wu

We study an incompressible viscous flow around an obstacle with an oscillating boundary that moves by a translational periodic motion, and we show existence of strong time-periodic solutions for small data in different configurations: If…

偏微分方程分析 · 数学 2023-03-20 Thomas Eiter , Yoshihiro Shibata

In this note we investigate the existence of time-periodic solutions to the $p$-Navier-Stokes system in the singular case of $p\in (1, 2)$, that describes the flows of an incompressible shear-thinning fluid. In the $3D$ space-periodic…

偏微分方程分析 · 数学 2019-05-01 Anna Abbatiello , Paolo Maremonti

We consider the large time behavior of the three-dimensional Navier-Stokes flow around a rotating rigid body. Assume that the angular velocity of the body gradually increases until it reaches a small terminal one at a certain finite time…

偏微分方程分析 · 数学 2020-10-06 T. Takahashi

We prove the unique existence of solutions of the 3D incompressible Navier-Stokes equations in an exterior domain with small non-decaying boundary data, for $t \in R$ or $t \in (0,\infty)$. In the latter case it is coupled with small…

偏微分方程分析 · 数学 2011-05-03 Kyungkuen Kang , Hideyuki Miura , Tai-Peng Tsai

This paper is concerned with integral representations and asymptotic expansions of solutions to the time-periodic incompressible Navier-Stokes equations for fluid flow in the exterior of a rigid body that moves with constant velocity. Using…

偏微分方程分析 · 数学 2024-02-20 Thomas Eiter , Ana Leonor Silvestre

We are concerned with the existence and uniqueness of solutions with only bounded density for the barotropic compressible Navier-Stokes equations. Assuming that the initial velocity has slightly sub-critical regularity and that the initial…

偏微分方程分析 · 数学 2020-01-08 Raphaël Danchin , Francesco Fanelli , Marius Paicu

We prove the existence of small amplitude, time-quasi-periodic solutions (invariant tori) for the incompressible Navier-Stokes equation on the $d$-dimensional torus $\T^d$, with a small, quasi-periodic in time external force. We also show…

偏微分方程分析 · 数学 2020-05-28 Riccardo Montalto
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