REDUCTION OF DRAG RESISTANCE CAUSED BY SURFACE ROUGHNESS AND MARINE FOULING

In 1979 the NTNF sponsored a state-of-the-art study on "Maintenance of ships' bottoms". The study took the form of a survey of present drydocking treatments and routines supplemented by a cost/benefit analysis of the latest developments in antifouling compositions. This work initiated a new project with the title "Reduction of drag resistance by surface treatment" sponsored by NTNF and the industry. The project was started in 1980 and is scheduled to terminate in 1982. The ambitious goal of the latter project is to supply documentation and specifications for systems that are believed to give a possible saving of 10% per annum in fuel consumption compared with the present average practice. The present paper outlines the basic relationship between hull surface roughness and its influence on drag resistance, and discusses the financial advantages of maintaining a smooth underwater hull.

  • Corporate Authors:

    Selvigs Publishing A/S

    P.O. Box 9070 Vaterland, Christian Krohgs gt. 16
    Oslo 1,   Norway 
  • Authors:
    • Naess, E
  • Publication Date: 1980

Media Info

  • Features: References;
  • Pagination: p. 13-16
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00330021
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM