MEASUREMENTS AND CALCULATIONS OF SHIP RESISTANCE IN WAVES. PART II

The constant-velocity and constant-thrust methods of towing in waves were compared. The constant-velocity method was used to test the effect of wave height on the added resistance. The horizontal component of the dynamic force, caused by the orbital velocities of water particles in waves, was measured for a number of wave lengths and heights at zero forward velocity. The added resistance coefficients are tabulated for a number of ship velocities. These coefficients can be used for calculation of added wave resistance in various sea states.

• Supplemental Notes:
  • See also MRIS #040938.
• Corporate Authors:

  University of California, Berkeley

  College of Engineering
  Berkeley, CA  United States  94720
• Authors:
  • Sibul, O J
• Publication Date: 1971-12

Media Info

• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Fluid resistance; Hulls; Measurement; Towing devices; Wave height; Wave measurement; Wave resistance
• Uncontrolled Terms: Hull resistance
• Old TRIS Terms: Towed body systems
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00040939
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NA-71-3 Tech Rpt
• Contract Numbers: N00014-69-A-02001014
• Files: TRIS
• Created Date: Feb 23 1973 12:00AM