A METHOD TO DETERMINE FORM FACTORS OF SHIP MODELS FROM RESISTANCE TESTS

Two methods are used to predict effective horsepower of a ship from resistance test results: the Froude method, which divides the resistance into frictional resistance and residuary resistance; and the form factor method, which divides resistance into frictional resistance, form factor resistance, and wave resistance. To use the form factor method it is necessary to measure resistance at low speed accurately; to assist in this the authors present a method for calculating the effective height of turbulence stimulation studs. A method for determining form factors from the results of resistance tests by a polynomial method is presented; this enables form factors to be determined accurately and easily for all types of ship and all loading conditions.

• Supplemental Notes:
  • IHI Engineering Rev., 15 <1982>, p. 9 <July> (5 pp., 8 ref., 7 fig., 1 tab.)
• Authors:
  • Shirose, Y
  • Hirono, S
• Publication Date: 1982

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00687029
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM