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This paper shows the unique solvability of elliptic problems associated with two-phase incompressible flows, which are governed by the two-phase Navier-Stokes equations, in unbounded domains such as the whole space separated by a compact…

偏微分方程分析 · 数学 2019-12-03 Hirokazu Saito , Xin Zhang

We consider the evolution of two-dimensional incompressible flows with variable density, only bounded and bounded away from zero. Assuming that the initial velocity belongs to a suitable critical subspace of L^2 , we prove a global-in-time…

偏微分方程分析 · 数学 2024-04-04 Raphaël Danchin

In this paper we derive a two-component system of nonlinear equations which model two-dimensional shallow water waves with constant vorticity. Then we prove well-posedness of this equation using a geometrical framework which allows us to…

数学物理 · 物理学 2019-01-03 Joachim Escher , David Henry , Boris Kolev , Tony Lyons

The question what information is necessary for determination of a unique solution of hydrodynamic equations for ideal fluid is investigated. Arbitrary inviscid flows of the barotropic fluid and of incompressible fluid are considered. After…

综合物理 · 物理学 2007-05-23 Yuri A. Rylov

We construct Gaussian invariant measures for the two-dimensional Euler equation on the plane. We show the existence of solution with initial conditions in the support of the measures, namely $H^\beta_{loc}(\R^2)$ with $\beta<-1$. Uniqueness…

偏微分方程分析 · 数学 2017-11-21 Ana Bela Cruzeiro , Alexandra Symeonides

In this paper we study the equations governing the unsteady motion of an incompressible homogeneous generalized second grade fluid subject to periodic boundary conditions. We establish the existence of global-in-time strong solutions for…

偏微分方程分析 · 数学 2014-04-18 Hafedh Bousbih , Mohamed Majdoub

This paper is concerned with the helicity associated to solutions of the 3D incompressible Euler equations. We show that under mild conditions on the regularity of the velocity field of an incompressible ideal fluid it is possible to define…

偏微分方程分析 · 数学 2025-01-07 Marco Inversi , Massimo Sorella

We show that, given a sufficiently regular forcing, the solution of the two-dimensional Navier--Stokes equations on the periodic $\beta$-plane (i.e.\ with the Coriolis force varying as $f_0+\beta y$) will become nearly zonal: with the…

偏微分方程分析 · 数学 2010-09-24 Mustafa Al-Jaboori , Djoko Wirosoetisno

The global solutions in critical spaces to the multi-dimensional compressible viscoelastic flows are considered. The global existence of the Cauchy problem with initial data close to an equilibrium state is established in Besov spaces.…

偏微分方程分析 · 数学 2010-10-22 Xianpeng Hu , Dehua Wang

The incompressible Navier-Stokes equations are considered. We find that there exist infinite non-trivial solutions of static Euler equations. Moreover there exist random solutions of static Euler equations. Provided Reynolds number is large…

偏微分方程分析 · 数学 2024-07-24 Yongqian Han

In this paper, we investigate a system coupled by nonhomogeneous incompressible Navier-Stokes equations and Allen-Cahn equations describing a diffuse interface for two-phase flow of viscous fluids with different densities in a bounded…

偏微分方程分析 · 数学 2025-03-06 Yinghua Li , Wenlin Ye

We establish the existence and uniqueness of smooth solutions with large vorticity and weak solutions with vortex sheets/entropy waves for the steady Euler equations for both compressible and incompressible fluids in arbitrary infinitely…

偏微分方程分析 · 数学 2019-02-19 Gui-Qiang G. Chen , Fei-Min Huang , Tian-Yi Wang , Wei Xiang

For two dimensional inhomogeneous Navier-Stokes of incompressible flows, with the assumption that the viscosity depends on the density but with a positive lower bound, using a partial regularity approach, in particular some enhanced decay…

偏微分方程分析 · 数学 2016-10-11 Ning Jiang , Yilong Luo

In this paper, we consider the well-posedness theory of two-dimensional compressible subsonic jet flows for steady full Euler system with general vorticity. Inspired by the analysis in arXiv:2006.05672, we show that the stream function…

偏微分方程分析 · 数学 2024-04-26 Yan Li

We present a fully-explicit, iteration-free, weakly-compressible method to simulate immiscible incompressible two-phase flows. To update pressure, we circumvent the computationally expensive Poisson equation and use the general pressure…

流体动力学 · 物理学 2024-06-03 Hormuzd Bodhanwalla , Dheeraj Raghunathan , Y. Sudhakar

The present paper aims to establish the local well-posedness of Euler's fluid equations on geometric rough paths. In particular, we consider the Euler equations for the incompressible flow of an ideal fluid whose Lagrangian transport…

偏微分方程分析 · 数学 2022-07-01 Dan Crisan , Darryl D. Holm , James-Michael Leahy , Torstein Nilssen

Our study of the basic model for incompressible two-phase flows with phase transitions consistent with thermodynamics [10,11,12,16] is extended to the case of temperature-dependent surface tension. We prove well-posedness in an Lp-setting,…

偏微分方程分析 · 数学 2014-05-23 Jan Pruess , Senjo Shimizu , Gieri Simonett , Mathias Wilke

The Euler equation of an ideal (i.e. inviscid incompressible) fluid can be regarded, following V.Arnold, as the geodesic flow of the right-invariant $L^2$-metric on the group of volume-preserving diffeomorphisms of the flow domain. In this…

微分几何 · 数学 2023-10-16 Anton Izosimov , Boris Khesin

We prove conditions for global nonlinear stability of Oldroyd-B viscoelatic fluid flows in the Couette shear flow geometry. Global stability is inferred by analysing a new functional, called a perturbation entropy, to quantify the magnitude…

流体动力学 · 物理学 2023-08-14 Joshua Binns , Andrew Wynn

In this paper we investigate the uniqueness of solutions of the steady planar Navier-Stokes equations with different boundary conditions in the exterior domain. For a class of incompressible flow with constant vorticity, we prove the…

偏微分方程分析 · 数学 2022-06-30 Zhengguang Guo , Wendong Wang