Coupling between the Fluctuating Wind Field, Wave Field and the Momentum Flux.

Abstract

This study examines the dependence of the computed drag coefficient on wind speed, stability, fetch, flux sampling problems and method of calculation of the drag coefficient. This analysis is applied to data collected at a tower 2 km off the coast of Denmark during the Ris(phi) Air Sea Experiment (RASEX). Large drag coefficients are observed with weak large scale flow. However the value of the computed drag coefficient at weak wind speeds is sensitive to fetch, stability, flux sampling problems and the method of calculation of the drag coefficient.

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Document Details

Document Type
Technical Report
Publication Date
Dec 05, 1995
Accession Number
ADA327245

Entities

People

  • Larry J. Mahrt

Organizations

  • Oregon State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Air Temperature
  • Atmospheric Motion
  • Boundary Layer
  • Convection
  • Coordinate Systems
  • Data Sets
  • Measurement
  • Meteorology
  • Quality Control
  • Surface Roughness
  • Temperature Gradients
  • Turbulence
  • Visual Inspection
  • Wind Direction
  • Wind Energy
  • Wind Stress
  • Wind Turbines

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers