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We present the components of a high-order accurate Navier-Stokes solver designed to simulate high-Reynolds-number stratified flows. The proposed numerical model addresses some of the numerical and computational challenges that…

流体动力学 · 物理学 2025-10-01 Nidia Reyes-Gil , Greg Thomsen , Kristopher Rowe , Peter Diamessis

Advancements in computational fluid mechanics have largely relied on Newtonian frameworks, particularly through the direct simulation of Navier-Stokes equations. In this work, we propose an alternative computational framework that employs…

流体动力学 · 物理学 2024-12-10 H. Sababha , A. Elmaradny , H. Taha , M. Daqaq

In this paper we consider the flow of two incompressible, viscous and immiscible fluids in a bounded domain, with different densities and viscosities. This model consists of a coupled system of Navier-Stokes and Mullins-Sekerka type parts,…

偏微分方程分析 · 数学 2025-05-13 Helmut Abels , Andrea Poiatti

This paper concerns the construction of traveling wave solutions to the free boundary incompressible Navier-Stokes system. We study a single layer of viscous fluid in a strip-like domain that is bounded below by a flat rigid surface and…

偏微分方程分析 · 数学 2022-09-13 Junichi Koganemaru , Ian Tice

WE PRESENT THE RANDOM REPRESENTATIONS FOR THE NAVIER-STOKES VORTICITY EQUATIONS FOR AN INCOMPRESSIBLE FLUID IN A SMOOTH MANIFOLD WITH BOUNDARY AND REFLECTING BOUNDARY CONDITIONS FOR THE VORTICITY. WE SPECIALIZE OUR CONSTRUCTIONS TO…

数学物理 · 物理学 2007-05-23 Diego L. Rapoport

We consider the slow flow of a viscous incompressible liquid in a channel of constant but arbitrary cross section shape, driven by non-uniform suction or injection through the porous channel walls. A similarity transformation reduces the…

流体动力学 · 物理学 2012-08-28 Kaare H. Jensen

In fairly general conditions we give explicit (smooth) solutions for the potential flow. We show that, rigorously speaking, the equations of the fluid mechanics have not rotational solutions. However, within the usual approximations of an…

流体动力学 · 物理学 2023-09-21 Marian Apostol

We prove global existence of weak solutions to two systems of equations which extend the dynamics of the Navier-Stokes equations for incompressible viscous flow with no-slip boundary condition. The systems of equations we consider arise as…

偏微分方程分析 · 数学 2013-08-23 Mihaela Ignatova , Gautam Iyer , James P. Kelliher , Robert L. Pego , Arghir D. Zarnescu

The three-dimensional, homogeneous, incompressible Navier-Stokes equations are studied in the absence of viscosity in one direction. It is shown that there are arbitrarily large initial data generating a unique global solution, the main…

偏微分方程分析 · 数学 2022-02-24 Isabelle Gallagher , Alexandre Yotopoulos

In the current state of the art regarding the Navier--Stokes equations, the existence of unique solutions for incompressible flows in two spatial dimensions is already well-established. Recently, these results have been extended to models…

偏微分方程分析 · 数学 2024-11-11 Jean-Paul Adogbo , Piotr B. Mucha , Maja Szlenk

A system of partial differential equations for a diffusion interface model is considered for the stationary motion of two macroscopically immiscible, viscous Newtonian fluids in a three-dimensional bounded domain. The governing equations…

偏微分方程分析 · 数学 2020-07-28 Zhilei Liang , Dehua Wang

This paper describes an adaptive preconditioner for numerical continuation of incompressible Navier--Stokes flows. The preconditioner maps the identity (no preconditioner) to the Stokes preconditioner (preconditioning by Laplacian) through…

数值分析 · 数学 2017-08-02 C. Beaume

We present and analyze a fully discrete fractional time stepping technique for the solution of the micropolar Navier Stokes equations, which is a system of equations that describes the evolution of an incompressible fluid whose material…

数值分析 · 数学 2013-12-06 Abner J. Salgado

We prove existence of global in time weak solutions to a compressible two-fluid Stokes system with a single velocity field and algebraic closure for the pressure law. The constitutive relation involves densities of both fluids through an…

偏微分方程分析 · 数学 2018-12-05 Didier Bresch , Piotr B. Mucha , Ewelina Zatorska

We study the incompressible Navier-Stokes equations in the two-dimensional strip $\mathbb{R} \times [0,L]$, with periodic boundary conditions and no exterior forcing. If the initial velocity is bounded, we prove that the solution remains…

偏微分方程分析 · 数学 2015-06-18 Thierry Gallay , Sinisa Slijepcevic

We study the Navier-Stokes equations governing the motion of isentropic compressible fluid in three dimensions driven by a multiplicative stochastic forcing. In particular, we consider a stochastic perturbation of the system as a function…

偏微分方程分析 · 数学 2017-01-03 Dominic Breit , Martina Hofmanová

Here we investigate 3-dimensional Navier-Stokes Equations in the incompressible case with use of different approach and we prove the uniqueness of the weak solutions for the data from the space, which is dense in usual space of data.…

偏微分方程分析 · 数学 2016-12-28 Kamal N. Soltanov

The nonconforming Morley-type virtual element method for the incompressible Navier-Stokes equations formulated in terms of the stream-function on simply connected polygonal domains (not necessarily convex) is designed. A rigorous analysis…

数值分析 · 数学 2022-12-06 D. Adak , D. Mora , A. Silgado

We consider a free boundary problem of compressible-incompressible two-phase flows with phase transitions in general domains of $N$-dimensional Euclidean space (e.g. whole space; half-spaces; bounded domains; exterior domains). The…

偏微分方程分析 · 数学 2020-01-23 Keiichi Watanabe

We prove existence of weak solutions for a diffuse interface model for the flow of two viscous incompressible Newtonian fluids in a bounded domain in two and three space dimensions. In contrast to previous works, we study a new model…

偏微分方程分析 · 数学 2015-06-03 Helmut Abels , Daniel Depner , Harald Garcke