DETERMINATION OF APPROXIMATE DIRECTIONAL SPECTRA FOR SURFACE WAVES,

Abstract

The knowledge of the two-dimensional spectra of surface waves is essential to the problem of the wave generating mechanism by winds, and to the related problem of wave forecasting. It is important to the understanding of coastal phenomena, and consequently to the design of coastal works. The author studied a method of determining the two-dimensional spectra of sea surface waves using the records of a pressure type wave recorder and the record of a special wave force meter which can record X and Y component wave force acting on a sphere in the sea. One set of data was analyzed by the method described, to obtain the approximate two-dimensional spectral density. In addition, the value of C sub D and C sub M in the conventional wave force formula for the sphere were obtained as a function of component wave frequency. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1968
Accession Number
AD0676813

Entities

People

  • Yoshimi Suzuki

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Delphi Method
  • Directional
  • Doppler Effect
  • Frequency
  • Frequency Shift
  • Recording Systems
  • Spectra
  • Surface Waves
  • Two Dimensional
  • Waves

Readers

  • Aerospace Test and Evaluation
  • Fluid Dynamics.
  • Plasma Physics / Magnetohydrodynamics