Improvement of the full-range equation for bottom friction under three-dimensional wave-current combined motion

Ahmad Sana, Hitoshi Tanaka

Research output: Contribution to journalArticle


The original version of the full-range equation to compute frictional resistance under wave-current combined motion by Tanaka and Thu (1994a) is tested against the latest experimental data for a three-dimensional wave-current boundary layer. A few modifications have been proposed to improve the predictive ability of the full-range equation in the transition region. The overall comparison shows satisfactory results. The prediction for the magnitude of maximum bottom shear stress and the mean shear stress is fairly improved.

Original languageEnglish
Pages (from-to)217-229
Number of pages13
JournalCoastal Engineering
Issue number1-4
Publication statusPublished - Jul 1997



  • Boundary layer
  • Shear stress
  • Three-dimensional wave-current motion

ASJC Scopus subject areas

  • Environmental Engineering
  • Ocean Engineering

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