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2006, Volume 6, Issue 3: 427-448. Doi: 10.3934/dcdsb.2006.6.427
This issue Previous Article Next Article Convergence to equilibrium of a multiscale model for suspensions

Fast algorithms for the approximation of a traffic flow model on networks

  • 1.

    Department of Engineering of Information and Applied Mathematics, DIIMA, University of Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA)

  • 2.

    Istituto per le Applicazioni del Calcolo "M. Picone", IAC-CNR, Viale del Policlinico, 137, 00161, Roma

  • 3.

    Istituto per le Applicazioni del Calcolo, Viale del Policlinico 137, 00161 Rome

Received:  October 31, 2005
Revised:  December 31, 2005
Published:  April 2007
Abstract Related Papers Cited by
    Abstract
  • New computation algorithms for a fluid-dynamic mathematical model of flows on networks are proposed, described and tested. First we improve the classical Godunov scheme (G) for a special flux function, thus obtaining a more efficient method, the Fast Godunov scheme (FG) which reduces the number of evaluations for the numerical flux. Then a new method, namely the Fast Shock Fitting method (FSF), based on good theorical properties of the solution of the problem is introduced. Numerical results and efficiency tests are presented in order to show the behaviour of FSF in comparison with G, FG and a conservative scheme of second order.
    Mathematics Subject Classification: 65M06; Secondary: 90B20, 35L65, 90B10.

    Citation:
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