Interactions of nonlinear gravity waves and uniform current in Lagrangian system

Hung Chu Hsu, Yang Yih Chen, Meng Syue Li, Wen Jer Tseng

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The particle trajectory on a weakly nonlinear progressive surface wave obliquely interacting with a uniform current is studied by using an Euler-Lagrange transformation. The third-order asymptotic solution is a periodic bounded function of Lagrangian labels and time, which imply that the entire solution is uniformly-valid. The explicit parametric solution highlights the trajectory of a water particle and mass transport associated with a particle displacement can now be obtained directly in Lagrangian form. The angular frequency and Lagrangian mean level of the particle motion in Lagrangian form differ from those of the Eulerian. The variations in the water particle orbits resulting from the oblique interaction with a steady uniform current of different magnitudes are also investigated.

Original languageEnglish
Pages (from-to)89-98
Number of pages10
JournalActa Oceanologica Sinica
Volume28
Issue number1
Publication statusPublished - 2009 Apr 30
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Aquatic Science

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