Critical Wave Conditions for Sand Motion Initiation.

Abstract

Sand and fluid characteristics together with the period of oscillatory flow determine the peak fluid velocity needed for sand motion initiation. With linear wave theory, this threshold peak near-bottom velocity can be used to calculate critical wave conditions for sand motion--either the minimum wave height in a given water depth, or the maximum water depth with a given wave height, for a given wave period. The procedure presented here permits prediction of the seaward extent of bed activity due to wave action in field and laboratory situations. Example calculations are provided. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1981
Accession Number
ADA104376

Entities

People

  • Robert J. Hallermeier

Organizations

  • Coastal Engineering Research Center

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Coastal Engineering
  • Conversion
  • Diameters
  • Engineering
  • Engineers
  • Equations
  • Flow
  • Fluid Flow
  • Frequency
  • Measurement
  • Shore Protection
  • Shores
  • Steady Flow
  • Surface Waves
  • United States
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Coastal Oceanography
  • Geotechnical Engineering.