Spectra of Turbulent Fluctuations over Ocean Waves.

Abstract

Spectral analyses are performed on turbulence data obtained over natural ocean waves during BOMEX. Results are obtained for variance and co-variance spectra, phase and coherence relationships, and amplitude ratios. Peaks in the horizontal and vertical velocity spectra are observed to correspond to the frequency of the wave spectra peaks. Phase relationships tend to obey predictions of potential flow theory in regions of the wave spectra peaks. However, the wave related motion contributes to the momentum transfer which is not predicted by potential flow theory. The ratio of the wave induced distrubance to the sea surface displacement is used to locate the wave spectra frequency for which the level of measurement is a critical level. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0753624

Entities

People

  • Glenn Stevenson Bingham

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Displacement
  • Flow
  • Frequency
  • Frequency Shift
  • Measurement
  • Momentum
  • Momentum Transfer
  • Ocean Waves
  • Physical Properties
  • Potential Flow
  • Spectra
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Spectroscopy.