Results 21 to 30 of about 41,720 (280)

Boundary layers in weak solutions to hyperbolic conservation laws [PDF]

open access: yes, 1999
This paper is concerned with the initial-boundary value problem for a nonlinear hyperbolic system of conservation laws. We study the boundary layers that may arise in approximations of entropy discontinuous solutions.
Joseph, K. T., LeFloch, Philippe G.
core   +2 more sources

Conservation laws for a viscoelastic medium

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
In this paper we consider a first order quasilinear non homogenoeus hyperbolic system describing viscoelastic processes. A full classification of first order local conservation laws admitted by such a rate-type model has been given.
Natale Manganaro
doaj   +1 more source

Design of optical surfaces conform the hyperbolic Monge-Ampère equation [PDF]

open access: yesEPJ Web of Conferences, 2022
We present a method for designing freeform optical surfaces for illumination optics. By the laws of reflection, refraction and conservation of energy, a fully nonlinear PDE, the Monge-Ampere equation, is derived for the optical surface.
Bertens M.W.M.C.   +3 more
doaj   +1 more source

Simple and High-Accurate Schemes for Hyperbolic Conservation Laws

open access: yesJournal of Applied Mathematics, 2014
The paper constructs a class of simple high-accurate schemes (SHA schemes) with third order approximation accuracy in both space and time to solve linear hyperbolic equations, using linear data reconstruction and Lax-Wendroff scheme.
Renzhong Feng, Zheng Wang
doaj   +1 more source

A (3+1)-dimensional generalized BKP-Boussinesq equation: Lie group approach

open access: yesResults in Physics, 2019
A (3+1)-D generalized B-type KP-Boussinesq equation, which was recently formulated in the literature, is investigated here from Lie group standpoint. A solution is obtained by Lie symmetry reductions and direct integration in terms of incomplete elliptic
Chaudry Masood Khalique   +1 more
doaj   +1 more source

Redistribution of damping in hyperbolic systems of conservation laws

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2013
By a change of variables that redistributes damping among the equations of systems of balance laws in one space dimension, it is demonstrated that dissipation induced by friction, viscosity or other physical mechanism, manifested in the decay of “entropy”
Constantine M. Dafermos
doaj   +1 more source

High-order implicit palindromic discontinuous Galerkin method for kinetic-relaxation approximation [PDF]

open access: yes, 2018
We construct a high order discontinuous Galerkin method for solving general hyperbolic systems of conservation laws. The method is CFL-less, matrix-free, has the complexity of an explicit scheme and can be of arbitrary order in space and time.
Coulette, David   +4 more
core   +3 more sources

Hyperbolic Conservation Laws�with Umbilic Degeneracy

open access: yesArchive for Rational Mechanics and Analysis, 1995
The authors extend their earlier compactness framework to some canonical classes of quadratic flux systems with an isolated ombilic point. Using these topological arguments, they establish: (1) the compactness of the solution operator, (2) the long time behaviour in \(L^{\infty}\) of entropy solutions corresponding to large initial data, (3) the ...
Chen, G, Kan, P
openaire   +4 more sources

Global existence of solutions for a multi-phase flow: a drop in a gas-tube [PDF]

open access: yes, 2015
In this paper we study the flow of an inviscid fluid composed by three different phases. The model is a simple hyperbolic system of three conservation laws, in Lagrangian coordinates, where the phase interfaces are stationary.
Amadori, Debora   +3 more
core   +2 more sources

Nonstrictly Hyperbolic Conservation Laws

open access: yesApplied Mathematics Letters, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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