Results 21 to 30 of about 41,878 (278)

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

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

Finite volume schemes on Lorentzian manifolds [PDF]

open access: yes, 2007
We investigate the numerical approximation of (discontinuous) entropy solutions to nonlinear hyperbolic conservation laws posed on a Lorentzian manifold.
Amorim, Paulo   +2 more
core   +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

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

Entropy Schemes for One-Dimensional Convection-Diffusion Equations

open access: yesComplexity, 2020
In this paper, we extend the entropy scheme for hyperbolic conservation laws to one-dimensional convection-diffusion equation. The operator splitting method is used to solve the convection-diffusion equation that is divided into conservation and ...
Rongsan Chen
doaj   +1 more source

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

The Variational Bi-Complex for Systems of Semi-Linear Hyperbolic PDEs in Three Variables

open access: yes, 2018
This paper extends, to a class of systems of semi-linear hyperbolic second order PDEs in three variables, the geometric study of a single nonlinear hyperbolic PDE in the plane as presented in [Anderson I.M., Kamran N., Duke Math. J.
Froehlich, Sara
core   +1 more source

Numerical study of hybrid third order compact scheme for hyperbolic conservation laws

open access: yesEnergy Reports, 2020
In this paper, we present a numerical study to study the capability of the radius of curvature to detect the discontinuous point for hybrid high order schemes.
Indra Wibisono, Yanuar, E.A. Kosasih
doaj   +1 more source

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