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We study the two-dimensional incompressible Navier-Stokes equations in a channel $\Omega=(0,L)\times(0,H)$ with small viscosity $\varepsilon\ll1$, an $\varepsilon$-Navier slip condition on the horizontal walls, and a viscous inflow…

偏微分方程分析 · 数学 2026-02-24 Yan Guo , Zhuolun Yang

Dispersive shock waves (DSWs) in the Kadomtsev-Petviashvili (KP) equation and two dimensional Benjamin-Ono (2DBO) equation are considered using parabolic front initial data. Employing a front tracking type ansatz exactly reduces the study…

斑图形成与孤子 · 物理学 2016-05-04 Mark J. Ablowitz , Ali Demirci , Yi-Ping Ma

We present a linear dispersive partial differential equation which manifests a number of qualitative features of dispersive shocks, typically thought to occur only in nonlinear models. The model captures much of the short time phenomenon…

偏微分方程分析 · 数学 2019-08-26 David Smith , Thomas Trogdon , Vishal Vasan

We treat the 1D shock tube problem, establishing existence of steady solutions of full (nonisentropic) polytropic gas dynamics with arbitrary noncharacteristic data. We present also numerical experiments indicating uniqueness and…

偏微分方程分析 · 数学 2023-04-13 Blake Barker , Benjamin Melinand , Kevin Zumbrun

The perturbed Burgers and KdV equations are considered. Often, the perturbation excites waves that are different from the solution one is seeking. In the case of the Burgers equation, the spontaneously generated wave is also a solution of…

可精确求解与可积系统 · 物理学 2007-05-23 Alex Vekser , Yair Zarmi

In this paper, the large time behavior of solutions of 1-D isentropic Navier-Stokes system is investigated. It is shown that a composite wave consisting of two viscous shock waves is stable for the Cauchy problem provided that the two waves…

偏微分方程分析 · 数学 2021-09-07 Lin Chang

We conjecture the exact shock statistics in the inviscid decaying Burgers equation in D>1 dimensions, with a special class of correlated initial velocities, which reduce to Brownian for D=1. The prediction is based on a field-theory…

统计力学 · 物理学 2015-05-28 Pierre Le Doussal , Alberto Rosso , Kay Jörg Wiese

The truncated Korteweg-De Vries (TKdV) system, a shallow-water wave model with Hamiltonian structure that exhibits weakly turbulent dynamics, has been found to accurately predict the anomalous wave statistics observed in recent laboratory…

流体动力学 · 物理学 2022-05-10 Hui Sun , Nicholas J. Moore

Travelling-wave solutions of the inviscid Burgers equation having smooth initial wave profiles of suitable shapes are known to develop shocks (infinite gradients) in finite times. Such singular solutions are characterized by energy spectra…

流体动力学 · 物理学 2015-05-14 Chuong V. Tran , David G. Dritschel

We consider the long-time behavior of irrotational solutions of the three-dimensional compressible Euler equations with shocks, hypersurfaces of discontinuity across which the Rankine-Hugoniot conditions for irrotational flow hold. Our…

偏微分方程分析 · 数学 2024-03-21 Daniel Ginsberg , Igor Rodnianski

The Degasperis-Procesi equation is the integrable Camassa-Holm-type model which is an asymptotic approximation for the unidirectional propagation of shallow water waves. This work establishes the orbital stability of localized smooth…

偏微分方程分析 · 数学 2020-07-01 Ji Li , Yue Liu , Qiliang Wu

We study the long-time behaviour of helically symmetric infinite-energy solutions to the incompressible Navier-Stokes equations in the whole space $\mathbb{R}^3$. Our solutions are $H^1$-perturbations of a Lamb-Oseen vortex whose…

偏微分方程分析 · 数学 2024-01-30 Quentin Vila

We investigate in this paper the global stability of the compressible viscous surface waves in the absence of surface tension effect with a steady-state violating Rayleigh-Taylor instability and the reference domain being the horizontal…

偏微分方程分析 · 数学 2025-06-25 Guilong Gui , Zhifei Zhang

The diffusive viscous wave equation describes wave propagation in diffusive and viscous media. Examples include seismic waves traveling through the Earth's crust, taking into account of both the elastic properties of rocks and the…

数值分析 · 数学 2025-01-13 Siyang Wang

We study motion of a phase transition front at a constant temperature between stable and metastable states in fluids with the universal Van der Waals equation of state (which is valid sufficiently close to the fluid's critical point). We…

斑图形成与孤子 · 物理学 2009-10-31 Osamu Inomoto , Shoichi Kai , Boris Malomed

This paper proves the existence of unstable shocks of the Burgers-Hilbert equation conjectured in arXiv:2006.05568. More precisely, we construct smooth initial data with finite $H^9$-norm such that the solution in self-similar coordinates…

偏微分方程分析 · 数学 2022-02-17 Ruoxuan Yang

This paper concerns with the large-time behaviors of the viscous shock profile and rarefaction wave under initial perturbations which tend to space-periodic functions at infinities for the one-dimensional compressible Navier-Stokes-Poisson…

偏微分方程分析 · 数学 2023-08-31 Yeping Li , Yu Mei , Yuan Yuan

The $m$-waves of Kelvin are uniformly rotating patch solutions of the 2D Euler equations with $m$-fold rotational symmetry for $m\geq 2$. For Kelvin waves sufficiently close to the disc, we prove a nonlinear stability result up to an…

偏微分方程分析 · 数学 2022-05-25 Kyudong Choi , In-Jee Jeong

We show the vanishing viscosity limit to entropy shocks for the fractal Burgers equation in one space dimension. More precisely, we quantify the rate of convergence of the inviscid limit in $L^2$ for large initial perturbations around the…

偏微分方程分析 · 数学 2020-01-17 Sona Akopian , Moon-Jin Kang , Alexis Vasseur

In this paper, we analyze the behavior of viscous shock profiles of one-dimensional compressible Navier-Stokes equations with a singular pressure law which encodes the effects of congestion. As the intensity of the singular pressure tends…

偏微分方程分析 · 数学 2020-12-14 Anne-Laure Dalibard , Charlotte Perrin