Well-balanced computations of weak local residuals for the shallow water equations

Authors

  • Stephen Gwyn Roberts Mathematical Sciences Institute (MSI) College of Phyiscal and Mathematical Sciences Australian National University ACT 0200 Australia
  • Sudi Mungkasi Department of Mathematics, Sanata Dharma University, Yogyakarta, Indonesia

DOI:

https://doi.org/10.21914/anziamj.v56i0.9369

Keywords:

weak local residual, local truncation error, smoothness indicator, shock detector, finite volume method, shallow water equations, balance laws, conservation laws

Abstract

The one-dimensional shallow water equations describe mass conservation and momentum conservation. We propose a well-balanced numerical technique for computing weak local residuals of the momentum equation. We compare the performance of weak local residuals of the momentum equation to those of the mass equation. All weak local residuals behave similarly. References

Published

2015-12-09

Issue

Section

Proceedings Computational Techniques and Applications Conference