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In this note, we show the existence of regular solutions to the stationary version of the Navier-Stokes system for compressible fluids with a density dependent viscosity, known as the shallow water equations. For arbitrary large forcing we…

Analysis of PDEs · Mathematics 2016-07-15 Šimon Axmann , Piotr B. Mucha , Milan Pokorný

The error estimates and convergence rate of a two-level MacCormack rapid solver method for solving a two-dimensional incompressible Navier-Stokes equations are analyzed. This represents a continuation of the work on the stability analysis…

Numerical Analysis · Mathematics 2019-03-27 Eric Ngondiep

We characterise the pressure term in the incompressible 2D and 3D Navier-Stokes equations for solutions defined on the whole space.

Analysis of PDEs · Mathematics 2020-01-29 Pierre Gilles Lemarié-Rieusset , Pedro Gabriel Fernández-Dalgo

For the 2D incompressible Navier-Stokes equations, with given hypothetical non smooth data at time $T > 0 $that may not correspond to an actual solution at time $T$, a previously developed stabilized backward marching explicit leapfrog…

Numerical Analysis · Mathematics 2024-11-25 Alfred S. Carasso

We obtain a new inequality that holds for general Leray solutions of the incompressible Navier-Stokes equations in Rn (n <= 4). This recovers important results previously obtained by other authors regarding the time decay of solution…

Analysis of PDEs · Mathematics 2017-07-04 Thomas Hagstrom , Jens Lorenz , Janaína P. Zingano , Paulo R. Zingano

In this proceeding we expose a particular case of a recent result obtained by the authors regarding the incompressible Navier-Stokes equations in a smooth bounded and simply connected bounded domain, either in 2D or in 3D, with a Navier…

Analysis of PDEs · Mathematics 2017-03-22 Jean-Michel Coron , Frédéric Marbach , Franck Sueur

Through asymptotic expansion, the large-time behavior of incompressible Navier--Stokes flow in $n$-dimensional whole space is depicted. Especially, from their parabolic scalings, large-time behaviors of any terms on the expansion are…

Analysis of PDEs · Mathematics 2025-05-07 Masakazu Yamamoto

In this paper, by invoking the appropriate decomposition of pressure to exploit the energy hidden in pressure, we present some new $\varepsilon$-regularity criteria for suitable weak solutions of the 3D Navier-Stokes equations at one scale:…

Analysis of PDEs · Mathematics 2019-06-13 Cheng He , Yanqing Wang , Daoguo Zhou

In the report, we propose a family of variable time-stepping ensemble algorithms for solving multiple incompressible Navier-Stokes equations (NSE) at one pass. The one-leg, two-step methods designed by Dahlquist, Liniger, and Nevanlinna…

Numerical Analysis · Mathematics 2024-07-30 Wenlong Pei

In this paper we consider the initial value problem of the incompressible generalized Navier-Stokes equations in torus $\mathbb{T}^d$ with $d \geq 2$. The generalized Navier-Stokes equations is obtained by replacing the standard Laplacian…

Analysis of PDEs · Mathematics 2025-02-24 Yuan-Xin Lin , Ya-Guang Wang

Algorithms for studying transitions and instabilities in incompressible flows typically require the solution of linear systems with the full Jacobian matrix. Other popular approaches, like gradient-based design optimization and fully…

Numerical Analysis · Mathematics 2020-11-12 Sven Baars , Mark van der Klok , Jonas Thies , Fred W. Wubs

In this work, we introduce a mass, energy, enstrophy and vorticity conserving (MEEVC) mixed finite element discretization for two-dimensional incompressible Navier-Stokes equations as an alternative to the original MEEVC scheme proposed in…

Numerical Analysis · Mathematics 2023-07-18 Yi Zhang , Artur Palha , Marc Gerritsma , Qinghe Yao

In this article we study some Liouville-type theorems for the stationary 3D Navier-Stokes equations. These results are related to the uniqueness of weak solutions for this system under some additional information over the velocity field,…

Analysis of PDEs · Mathematics 2023-11-14 Diego Chamorro , Gastón Vergara-Hermosilla

We construct non-trivial steady solutions in $H^{-1}$ for the 2D Navier-Stokes equations on the torus. In particular, the solutions are not square integrable, so that we have to redefine the notion of solutions.

Analysis of PDEs · Mathematics 2024-02-13 Pierre Gilles Lemarié-Rieusset

We prove some estimates for suitable weak solutions to the non-stationary three-dimensional Navier-Stokes equations under assumptions that certain invariant functionals of the velocity are bounded.

Analysis of PDEs · Mathematics 2007-05-23 G Seregin

We prove the global existence and uniqueness of strong solutions for a compressible multifluid described by the barotropic Navier-Stokes equations in dim = 1. The result holds when the diffusion coefficient depends on the pressure. It…

Mathematical Physics · Physics 2010-12-30 C. Michoski , A. Vasseur

We consider the globally modified stochastic (hyperviscous) Navier-Stokes equations with transport noise on 3D torus. We first establish the existence and pathwise uniqueness of the weak solutions, and then show their convergence to the…

Probability · Mathematics 2025-01-22 Chang Liu , Dejun Luo

For the two-phase incompressible Navier--Stokes equations with surface tension, we derive an appropriate weak formulation incorporating a variational formulation using divergence-free test functions. We prove a consistency result to justify…

Analysis of PDEs · Mathematics 2018-01-16 Helmut Abels , Johannes Daube , Christiane Kraus

We present an algorithm for the numerical solution of systems of fully nonlinear PDEs using stochastic coded branching trees. This approach covers functional nonlinearities involving gradient terms of arbitrary orders, and it requires only…

Numerical Analysis · Mathematics 2022-12-27 Jiang Yu Nguwi , Guillaume Penent , Nicolas Privault

We construct a local in time spatially real-analytic solution to the 2D and 3D stochastic Navier--Stokes equation driven by a spatially real-analytic multiplicative and transport noise but emanating from an initial condition that is only…

Analysis of PDEs · Mathematics 2024-07-15 Dan Crisan , Prince Romeo Mensah
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