نتایج جستجو برای: compact finite difference scheme

تعداد نتایج: 938132  

2015
Michael Herty

We discuss numerical stabilisation of dynamics governed by nonlinear hyperbolic conservation laws through feedback boundary conditions. Using a discrete Lyapunov function we prove exponential decay of the discrete solution to first– order finite volume schemes in conservative form. Decay rates are established for a large class of finite volume schemes including the Lax–Friedrichs scheme. Theore...

Journal: :J. Comput. Physics 2012
Jeffrey W. Banks William D. Henshaw

We develop new high-order accurate upwind schemes for the wave equation in second-order form. These schemes are developed directly for the equations in second-order form, as opposed to transforming the equations to a first-order hyperbolic system. The schemes are based on the solution to a local Riemann-type problem that uses d’Alembert’s exact solution. We construct conservative finite differe...

2010
F. Bouchut

We consider the approximation by multidimensional finite volume schemes of the transport of an initial measure by a Lipschitz flow. We first consider a scheme defined via characteristics, and we prove the convergence to the continuous solution, as the time-step and the ratio of the space step to the time-step tend to zero. We then consider a second finite volume scheme, obtained from the first ...

Journal: :Zeitschrift für angewandte Mathematik und Physik 2017

Journal: :Journal of Mathematical Sciences 2021

In this paper we suggest an explicit finite-difference scheme for numerical simulation of the Cauchy problem with integro-differential nonlinear equation that describes oscillatory process friction and memory (hereditarity), corresponding local initial conditions. The problems approximation, stability, convergence proposed are investigated. results computer experiments implement scheme, confirm...

Journal: :The Journal of the Acoustical Society of America 1993

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