中文
相关论文

相关论文: Computation of measure-valued solutions for the in…

200 篇论文

We propose a spectral viscosity method to approximate the two-dimensional Euler equations with rough initial data and prove that the method converges to a weak solution for a large class of initial data, including when the initial vorticity…

数值分析 · 数学 2021-04-01 Samuel Lanthaler , Siddhartha Mishra

In their seminal paper "Oscillations and concentrations in weak solutions of the incompressible fluid equations", R. DiPerna and A. Majda introduced the notion of measure-valued solution for the incompressible Euler equations in order to…

偏微分方程分析 · 数学 2013-05-06 László Székelyhidi , Emil Wiedemann

We propose and study the framework of dissipative statistical solutions for the incompressible Euler equations. Statistical solutions are time-parameterized probability measures on the space of square-integrable functions, whose…

数值分析 · 数学 2021-02-25 Samuel Lanthaler , Siddhartha Mishra , Carlos Parés-Pulido

Measure-valued solutions to fluid equations arise naturally, for instance as vanishing viscosity limits, yet exhibit non-uniqueness to a vast extent. In this paper, we show that some measurevalued solutions to the two-dimensional isentropic…

偏微分方程分析 · 数学 2023-03-14 Dennis Gallenmüller , Emil Wiedemann

We construct two particular solutions of the full Euler system which emanate from the same initial data. Our aim is to show that the convex combination of these two solutions form a measure-valued solution which may not be approximated by a…

偏微分方程分析 · 数学 2020-10-01 Václav Mácha , Emil Wiedemann

The Cauchy problem for the complete Euler system is in general ill posed in the class of admissible (entropy producing) weak solutions. This suggests there might be sequences of approximate solutions that develop fine scale oscillations.…

数值分析 · 数学 2018-03-23 Eduard Feireisl , Maria Lukacova-Medvidova , Hana Mizerova

We present an efficient numerical scheme based on Monte Carlo integration to approximate statistical solutions of the incompressible Euler equations. The scheme is based on finite volume methods, which provide a more flexible framework than…

数值分析 · 数学 2022-09-07 Carlos Parés-Pulido

We introduce a new concept of dissipative measure-valued martingale solutions to the stochastic compressible Euler equations. These solutions are weak in the probabilistic sense i.e., the probability space and the driving Wiener process are…

偏微分方程分析 · 数学 2020-12-15 Martina Hofmanova , Ujjwal Koley , Utsab Sarkar

We propose a spectral viscosity method (SVM) to approximate the incompressible Euler equations driven by a multiplicative noise. We show that SVM solution converges to a dissipative measure-valued martingale solution. These solutions are…

偏微分方程分析 · 数学 2021-09-03 Abhishek Chaudhary

We introduce the concept of dissipative measure-valued solution to the complete Euler system describing the motion of an inviscid compressible fluid. These solutions are characterized by a parameterized (Young) measure and a dissipation…

偏微分方程分析 · 数学 2017-02-17 Jan Brezina , Eduard Feireisl

In this paper, we propose a new approach to singular limits of inviscid fluid flows based on the concept of dissipative measure-valued solutions. We show that dissipative measure-valued solutions of the compressible Euler equations converge…

偏微分方程分析 · 数学 2019-05-06 Eduard Feireisl , Christian Klingenberg , Simon Markfelder

We design an energy-stable and asymptotic-preserving finite volume scheme for the compressible Euler system. Using the relative energy framework, we establish rigorous error estimates that yield convergence of the numerical solutions in two…

A procedure is suggested for testing the resolution and comparing the relative accuracy of numerical schemes for integration of the incompressible Euler equations.

混沌动力学 · 物理学 2010-02-17 C. R. Doering , J. D. Gibbon , D. D. Holm

We approximate the regular solutions of the incompressible Euler equation by the solution of ODEs on finite-dimensional spaces. Our approach combines Arnold's interpretation of the solution of Euler's equation for incompressible and…

数值分析 · 数学 2016-05-03 Thomas Gallouët , Quentin Mérigot

We consider several pressureless variants of the compressible Euler equation driven by nonlocal repulsionattraction and alignment forces with Poisson interaction. Under an energy admissibility criterion, we prove existence of global…

偏微分方程分析 · 数学 2021-09-17 José A. Carrillo , Tomasz Dębiec , Piotr Gwiazda , Agnieszka Świerczewska-Gwiazda

We consider the complete Euler system describing the time evolution of a general inviscid compressible fluid. We introduce a new concept of measure-valued solution based on the total energy balance and entropy inequality for the physical…

偏微分方程分析 · 数学 2018-05-23 Jan Brezina , Eduard Feireisl

Contrary to the incompressible case not every measure-valued solution of the compressible Euler equations can be generated by weak solutions or a vanishing viscosity sequence. In the present paper we give sufficient conditions on an…

偏微分方程分析 · 数学 2023-03-14 Dennis Gallenmüller , Emil Wiedemann

A new type of systematic approach to study the incompressible Euler equations numerically via the vanishing viscosity limit is proposed in this work. We show the new strategy is unconditionally stable that the $L^2$-energy dissipates and…

数值分析 · 数学 2024-06-19 Xinyu Cheng , Zhaonan Luo , Sheng Wang

An analytical linear solution of the fully compressible Euler equations is found, in the particular case of a stationary two dimensional flow that passes over an orographic feature with small height-width ratio. A method based on the…

大气与海洋物理 · 物理学 2016-12-20 Juan Simarro , Petra Smolikova , Jozef Vivoda

The numerical simulation of the 3D incompressible Euler equation is analyzed with respect to different integration methods. The numerical schemes we considered include spectral methods with different strategies for dealiasing and two…

流体动力学 · 物理学 2009-11-13 Tobias Grafke , Holger Homann , Juergen Dreher , Rainer Grauer
‹ 上一页 1 2 3 10 下一页 ›