Improvement of the full-range equation for wave boundary layer thickness

Hitoshi Tanaka*, Nguyen Xuan Tinh, Ahmad Sana

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In order to improve the accuracy of the original full-range equation for wave boundary layer thickness, with special reference to increasing its applicability to tsunami-scale waves, a theoretical investigation is carried out to derive a dimensionless expression which is valid under both smooth and rough turbulent regimes. A coefficient in the equation is determined through a comparison with k-ω model computation results for tsunami-waves along with laboratory scale oscillatory flow experiments. Thus, the improved full-range equation for wave boundary layer thickness enables us to cover a wide range of wave periods from wind-wave to tsunami.

Original languageEnglish
Article number573
JournalJournal of Marine Science and Engineering
Issue number8
Publication statusPublished - Aug 2020


  • k-ω turbulence model
  • Sea bottom boundary layer
  • Tsunami
  • Velocity profile
  • Wave boundary layer thickness

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Ocean Engineering

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