Effects of Coating Roughness and Biofouling on Ship Resistance and Powering

Abstract

Predictions of full-scale ship resistance and powering are made for antifouling coating systems with a range of roughness and fouling conditions. The estimates are based on results from laboratory-scale drag measurements and boundary layer similarity law analysis. In the present work, predictions are made for a mid-sized naval surface combatant at cruising speed and near maximum speed. The results indicate that slime films can lead to significant increases in resistance and powering and heavy calcareous fouling results in powering penalties up to 86% at cruising speed. The present estimates show good agreement with results from full-scale ship power trials.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2007
Accession Number
ADA575004

Entities

People

  • Michael P. Schultz

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Agreements
  • Antifouling
  • Antifouling Coatings
  • Boundaries
  • Boundary Layer
  • Coatings
  • Fluid Flow
  • Froude Number
  • Measurement
  • Naval Architecture
  • Roughness
  • Second World War
  • Ship Hulls
  • Surface Properties
  • Surface Roughness
  • United States
  • United States Naval Academy

Readers

  • Electrical Engineering
  • Fluid Mechanics and Fluid Dynamics.
  • Underwater engineering and Marine Technology.