Absorbing boundary technique for open channel flows

Scott A. Yost, Prasada Rao, Russell M. Brown

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


An absorbing boundary condition is formulated and applied to the one-dimensional open channel flow equations in conjunction with an explicit MacCormack scheme. The physical flow domain has been truncated by introducing an artificial pseudo-boundary. By using an appropriate boundary condition on a truncated domain, it is shown that, for flow containing shocks, the solution can be accelerated to its stationary profile with no loss of accuracy. Copyright (C) 2000 John Wiley and Sons, Ltd.

Original languageEnglish
Pages (from-to)641-656
Number of pages16
JournalInternational Journal for Numerical Methods in Fluids
Issue number5
StatePublished - Jul 2000


  • Non-reflecting boundary
  • Open channel flows
  • Shocks
  • Subcritical/supercritical flow

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics


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