Frequency downshifting of wave spectra and formation of freak waves on non-uniform opposing current

Igor Shugan, Yana Saprykina, Sergey Kuznetsov, Ray-Yeng Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Physical and numerical modeling of initially monochromatic wave propagation on stepwise opposite current in conditions of deep water was carrying out. The physical experiments demonstrated two steps of downshifting of spectral maximum in the regions of increasing of opposite current. Freak waves arise at the moments of downshifting, when several peaks of spectrum exist, due to superposition of waves, provided by each of spectral peaks. To explain the phenomena of downshifting the dynamical evolution set of equations are constructed. Their solutions perfectly described the main qualitative features of wave transformation during the physical experiments.

Original languageEnglish
Title of host publicationProceedings of the 34th International Conference on Coastal Engineering, ICCE 2014
EditorsPatrick Lynett
PublisherAmerican Society of Civil Engineers (ASCE)
ISBN (Electronic)9780989661126
Publication statusPublished - 2014 Jan 1
Event34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
Duration: 2014 Jun 152014 Jun 20

Publication series

NameProceedings of the Coastal Engineering Conference
Volume2014-January
ISSN (Print)0161-3782

Other

Other34th International Conference on Coastal Engineering, ICCE 2014
CountryKorea, Republic of
CitySeoul
Period14-06-1514-06-20

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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