The simulation of dam-break flows by an improved predictor-corrector TVD scheme

Ming Hseng Tseng, Chia R. Chu

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

This paper reports a finite difference predictor-corrector TVD (total variation diminishing) scheme for the computation of unsteady one-dimensional dam-break flows. The algorithm modified the widely used MacCormack scheme by implementing a conservative dissipation step to avoid any unphysical oscillation in the vicinity of strong gradients in the numerical solution. A general treatment for satisfying the entropy inequality condition is incorporated. The accuracy and robustness of the numerical scheme are verified with an analytic solution and experimental data. Furthermore, a sensitivity study is carried out to investigate the accuracy of four different versions of the predictor-corrector schemes. It is found that the numerical scheme will have less computational error and higher efficiency when the direction of the predictor-corrector step is the same as the direction of the shock wave propagation.

Original languageEnglish
Pages (from-to)637-643
Number of pages7
JournalAdvances in Water Resources
Volume23
Issue number6
DOIs
StatePublished - 20 May 2000

Keywords

  • Dam-break flows
  • Finite difference
  • Predictor-corrector TVD scheme

Fingerprint

Dive into the research topics of 'The simulation of dam-break flows by an improved predictor-corrector TVD scheme'. Together they form a unique fingerprint.

Cite this