STUDY OF LOCAL ROUGHNESS EFFECT ON SHIP RESISTANCE FOR EFFECTIVE CLEANING AND PROTECTION OF HULL SURFACE

Protection of ship hull surface from Fouling is one of the essential means to reduce the fuel oil consumption. For economical and effective cleaning and protection from fouling it is important to know the most effective location of hull surface in cleaning and protection with respect to reduction of ship resistance. In the present study, the resistance tests were made for a bulk carrier model and tanker models which were roughened artificially. The tests were made varying the roughened part systematically in lengthwise divisions. As a result it was found that the effect of the first quarter length of a ship is significantly larger (above 40%) among them. Some theoretical considerations which confirm the experimental results were made based on the turbulent boundary layer calculation for smooth and roughened hull surfaces.

• Supplemental Notes:
  • Shipboard Energy Conservation '80, presented by the New York Metropolitan Section of SNAME, New York, New York, September 22-23, 1980.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Baba, E
  • Tokunaga, K
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: p. 315-330
• Serial:
  • Publication of: Society of Naval Architects and Marine Engineers
  • Publisher: Society of Naval Architects and Marine Engineers

Subject/Index Terms

• TRT Terms: Antifouling coatings; Boundary layer flow; Cleaning; Fluid resistance; Hulls; Resistance tests; Roughness; Ship motion; Ships; Skin resistance; Surfaces
• Old TRIS Terms: Fouling protection; Hull cleaning; Hull roughness; Hull surfaces; Model testing
• Subject Areas: Maintenance and Preservation; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00322776
• Record Type: Publication
• Report/Paper Numbers: Session V-A
• Files: TRIS
• Created Date: Nov 29 1980 12:00AM