A posteriori error estimates for self-similar solutions to the Euler equations

A posteriori error estimates for self-similar solutions to the Euler equations
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欧拉方程自相似解的后验误差估计

DOI:
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发表时间:
2020
期刊:
Discrete and Continuous Dynamical Systems. Series A
影响因子:
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通讯作者:
Wen Shen
Wen Shen
中科院分区:
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文献类型:
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作者:
A. Bressan;Wen Shen

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本文的主要目的是分析一类“最简单可能”的初始数据,如数值模拟所示,不可压缩欧拉方程有多个解。我们在这里迈出了对这些数值结果进行严格验证的第一步。也就是说,我们考虑对应于一个自相似解的方程组,它被限制在具有光滑边界的有界区域上。给出了用有限维伽辽金方法得到的近似解,建立了数值近似与具有相同边界数据的精确解之间距离的后验误差界。
The main goal of this paper is to analyze a family of "simplest possible" initial data for which, as shown by numerical simulations, the incompressible Euler equations have multiple solutions. We take here a first step toward a rigorous validation of these numerical results. Namely, we consider the system of equations corresponding to a self-similar solution, restricted to a bounded domain with smooth boundary. Given an approximate solution obtained via a finite dimensional Galerkin method, we establish a posteriori error bounds on the distance between the numerical approximation and the exact solution having the same boundary data.
DOI: 10.1007/s00222-012-0429-9
发表时间: 2013-08-01
影响因子: 3.1
作者:
De Lellis, Camillo;Szekelyhidi, Laszlo, Jr.
通讯作者: Szekelyhidi, Laszlo, Jr.
DOI: 10.1007/s00205-008-0201-x
发表时间: 2010-01-01
影响因子: 2.5
作者:
De Lellis, Camillo;Szekelyhidi, Laszlo, Jr.
通讯作者: Szekelyhidi, Laszlo, Jr.