Wave-current interaction at an angle 1: Experiment

Pradeep C. Fernando, Junke Guo, Pengzhi Lin

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

This research presents an experimental study in a spatial wave basin for nonlinear interaction of regular waves with a perpendicular shear current over a movable bed. Detailed measurements were collected for current velocity profiles under different conditions, from which the bed shear stress and apparent roughness heights were determined. These combined with the measured velocities were used to validate theoretical models for wave-current interaction at an angle. It is found that for small wave heights all models agree well with the measured mean current velocities in the combined flow, while for larger wave heights only two models are reasonably close to the measurements for current velocities. For very large waves none of the models adequately describes the near-surface current velocities, which deviate significantly from the log-law. For the bed shear stress and the apparent roughness, only one model describes the measured data well.

Original languageEnglish (US)
Pages (from-to)424-436
Number of pages13
JournalJournal of Hydraulic Research
Volume49
Issue number4
DOIs
StatePublished - Aug 1 2011

Keywords

  • Bed roughness
  • bed shear stress
  • theoretical model
  • velocity distribution
  • wave-current interaction

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology

Fingerprint Dive into the research topics of 'Wave-current interaction at an angle 1: Experiment'. Together they form a unique fingerprint.

  • Cite this