Improved coastal boundary condition for surface water waves

David R. Steward, Vijay Panchang

Research output: Contribution to journalArticle

28 Citations (Scopus)


Surface water waves in coastal waters are commonly modeled using the mild slope equation. One of the parameters in the coastal boundary condition for this equation is the direction at which waves approach a coast. Three published methods of estimating this direction are examined, and it is demonstrated that the wave fields obtained using these estimates deviate significantly from the corresponding analytic solution. A new method of estimating the direction of approaching waves is presented and it is shown that this method correctly reproduces the analytic solution. The ability of these methods to simulate waves in a rectangular harbor is examined. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)139-157
Number of pages19
JournalOcean Engineering
Issue number1
Publication statusPublished - Jan 2001
Externally publishedYes



  • Coastal engineering
  • Directions
  • Harbor
  • Harbour
  • Mild-slope equation
  • Model
  • Surface water
  • Wave

ASJC Scopus subject areas

  • Ocean Engineering
  • Environmental Engineering

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