Measurement of the dispersion relation for random surface gravity waves

Tore Magnus A. Taklo, Karsten Trulsen, Odin Gramstad, Harald E. Krogstad, Atle Jensen

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We report laboratory experiments and numerical simulations of the Zakharov equation, designed to have sufficient resolution in space and time to measure the dispersion relation for random surface gravity waves. The experiments and simulations are carried out for a JONSWAP spectrum and Gaussian spectra of various bandwidths on deep water. It is found that the measured dispersion relation deviates from the linear dispersion relation above the spectral peak when the bandwidth is sufficiently narrow.

Original languageEnglish (US)
Pages (from-to)326-336
Number of pages11
JournalJournal of Fluid Mechanics
Volume766
DOIs
StatePublished - Mar 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Surface gravity waves
  • waves/free-surface flows

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