A generation method of asymmetric oscillatory motion simulating cnoidal waves

Hitoshi Tanaka, Hiroto Yamaji, Ahmad Sana, Nobuo Shuto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A mechanical motion induced by a rotating disc is shown to be almost identical to the oscillatory motion due to first-order cnoidal waves at small to intermediate Ursell numbers. A dimensionless parameter, b*, in the theory is given in terms of Ursell number. The theory can be applied to a generation of an asymmetric oscillatory flow in a closed conduit, simulating near-bottom boundary layer under cnoidal waves.

Original languageEnglish
Pages (from-to)291-306
Number of pages16
JournalCoastal Engineering Journal
Volume40
Issue number3
Publication statusPublished - Sep 1998

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Keywords

  • Bottom shear stress
  • Cnoidal waves
  • Oscillating tunnel
  • Wave boundary layer

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Modelling and Simulation
  • Ocean Engineering

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