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We consider an evolution equation of parabolic type in R having a travelling wave solution. We perform an appropriate change of variables which transforms the equation into a non local evolution one having a travelling wave solution with…

偏微分方程分析 · 数学 2015-03-17 Jose M. Arrieta , Maria Lopez-Fernandez , Enrique Zuazua

The equations in conservative form for nonlinear waves modeling on a liquid film flowing down a vertical plane have been investigated. It has been found that in the computational domain extended along the transverse axis the equations with…

流体动力学 · 物理学 2016-06-29 Dmitry Arkhipov , Ivan Vozhakov , Dmitry Markovich , Oleg Tsvelodub

We study the flow of an incompressible liquid film down a wavy incline. Applying a Galerkin method with only one ansatz function to the Navier-Stokes equations we derive a second order weighted residual integral boundary layer equation,…

偏微分方程分析 · 数学 2015-05-13 Tobias Häcker , Hannes Uecker

It is shown that a slip wave solution exists for anti-plane sliding of an elastic layer on an elastic half-space. It is a companion solution to the well-known Love wave solution.

地球物理 · 物理学 2017-02-01 K. Ranjith

We apply the version of the method of simplest equation called modified method of simplest equation for obtaining exact traveling wave solutions of a class of equations that contain as particular case a nonlinear PDE that models shallow…

可精确求解与可积系统 · 物理学 2017-09-18 Nikolay K. Vitanov , Tsvetelina I. Ivanova

In this work we study the evolution of the interface between two different fluids in two concentric cylinders when the velocity is given by the Navier-Stokes equation and one of the fluids is thin. We present a formal asymptotic derivation…

偏微分方程分析 · 数学 2019-06-03 Tania Pernas-Castaño , Juan J. L. Velázquez

We consider smooth solutions of the Burgers-Hilbert equation that are a small perturbation $\delta$ from a global periodic traveling wave with small amplitude $\epsilon$. We use a modified energy method to prove the existence time of smooth…

偏微分方程分析 · 数学 2022-05-11 Ángel Castro , Diego Córdoba , Fan Zheng

The solution was found from Navier-Stokes equation and boundary conditions with interfacial tension as function of the film substance concentration. Here the method of Chen&Vinals is used. It was found that adding to coefficient leads to…

流体动力学 · 物理学 2007-05-23 E. Postnikov

We analyze the weak solution concept for the Fornberg-Whitham equation in case of traveling waves with a piecewise smooth profile function. The existence of discontinuous weak traveling wave solutions is shown by means of analysis of a…

偏微分方程分析 · 数学 2018-04-23 Guenther Hoermann

We study traveling wave solutions to the free boundary problem associated to a generalized Navier-Stokes Fourier system, which models a viscous, incompressible, heat-conducting fluid. The fluid is assumed to occupy a horizontally infinite…

偏微分方程分析 · 数学 2026-03-24 Jae Ho Choi , Ian Tice

We prove existence and uniqueness of travelling waves for a reaction-diffusion system coupling a classical reaction-diffusion equation in a strip with a diffusion equation on a line. To do this we use a continuation method which leads to…

偏微分方程分析 · 数学 2014-10-20 Laurent Dietrich

We study a moving boundary value problem consisting of a viscous incompressible fluid moving and interacting with a nonlinear elastic solid shell. The fluid motion is governed by the Navier-Stokes equations, while the shell is modeled by…

偏微分方程分析 · 数学 2007-05-23 C. H. Arthur Cheng , Daniel Coutand , Steve Shkoller

In this paper, we study the traveling wave solutions to the density-suppressed motility model describing the ``self-trapping'' mechanism that induces spatio-temporal pattern formations observed in the experiment. We establish the existence…

偏微分方程分析 · 数学 2020-06-24 Jing Li , Zhi-An Wang

In this paper we study the existence of traveling wave solutions for a free-boundary problem modeling the phase transition of a material where the heat is transported by both conduction and radiation. Specifically, we consider a…

偏微分方程分析 · 数学 2025-06-03 Elena Demattè , Juan J. L. Velázquez

We study the stationary flow of incompressible micropolar fluid in a thin three-dimensional domain under Navier slip boundary condition for the velocity and no-spin condition for microrotation. After rescaling the governing equations, we…

偏微分方程分析 · 数学 2026-01-21 María Anguiano , Igor Pažanin , Francisco J. Suárez-Grau

We analyze travelling wave (TW) solutions for nonlinear systems consisting of an ODE coupled to a degenerate PDE with a diffusion coefficient that vanishes as the solution tends to zero and blows up as it approaches its maximum value.…

偏微分方程分析 · 数学 2022-02-17 Koondanibha Mitra , Jack M. Hughes , Stefanie Sonner , Hermann J. Eberl , Jack D. Dockery

This paper presents recent results concerning the existence and qualitative properties of travelling wave solutions to the Gross-Pitaevskii equation posed on the whole space R^N. Unlike the defocusing nonlinear Schr\"odinger equations with…

偏微分方程分析 · 数学 2009-02-24 Fabrice Béthuel , Philippe Gravejat , Jean-Claude Saut

This paper presents an analytical investigation of the solutions to a control volume model for liquid films flowing down a vertical fibre. The evolution of the free surface is governed by a coupled system of degenerate nonlinear partial…

偏微分方程分析 · 数学 2024-02-13 Roman M. Taranets , Hangjie Ji , Marina Chugunova

We study a moving boundary value problem consisting of a viscous incompressible fluid moving and interacting with a nonlinear elastic fluid shell. The fluid motion is governed by the Navier-Stokes equations, while the fluid shell is modeled…

偏微分方程分析 · 数学 2007-05-23 C. H. Arthur Cheng , Daniel Coutand , Steve Shkoller

By a bifurcation argument we prove that the capillary-gravity Whitham equation features asymmetrical periodic travelling wave solution of arbitrarily small amplitude. Such waves exist only in the weak surface tension regime…

偏微分方程分析 · 数学 2024-01-23 Ola Mæhlen , Douglas Svensson Seth