Small - Scale Morphology and Boundary Layer Processes: Measurement and Modeling

Abstract

LONG-TERM GOALS. The main goal of the research project is to contribute to a better understanding of the basic mechanisms controlling sediment transport in the nearshore regions. In particular the structure of flow in the bottom boundary layer is of interest along with its interaction with sediment dynamics. OBJECTIVES. We want to look at the dynamics of the coherent vortex structures which are generated at the bottom of sea waves by 1) the instability of the laminar boundary layer 2) the nonlinear interaction of the oscillatory boundary layer with a wavy bed 3) The separation of the boundary layer at the crests of 2-D ripples of large amplitude. The flow will then be used to study sediment dynamics.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1997
Accession Number
ADA634494

Entities

People

  • Edward B. Thornton
  • Paolo Blondeaux

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • Boundaries
  • Boundary Layer
  • Dynamics
  • Equations
  • Flow
  • Flow Fields
  • Laminar Boundary Layer
  • Layers
  • Measurement
  • Reynolds Number
  • Sedimentation
  • Sediments
  • Suspended Sediments
  • Three Dimensional
  • Two Dimensional
  • Viscous Flow

Readers

  • Coastal Oceanography
  • Fluid Dynamics.