POWERING CHARACTERISTICS OF A LOW-BLOCK DISPLACEMENT HULL FORM IN HEAD SEAS

Ship powering characteristics in a seaway were investigated for the model of a low-block coefficient, displacement-type hull in both regular and irregular head seas. The increase in power required to maintain speed was predicted by using both the regular-wave and the irregular-wave test results and these predictions were compared. Results indicate that when used within certain limits, the assumption held that added drag is proportional to wave height squared. (Author)

• Corporate Authors:

  Naval Ship Research and Development Center

  Bethesda, MD  United States  20034
• Authors:
  • Yeh, HYH
  • SCHUTZ, H
  • Plaia, P
• Publication Date: 1973-6

Media Info

• Pagination: 31 p.

Subject/Index Terms

• TRT Terms: Drag; Energy consumption; Fluid dynamics; Fluid resistance; Hulls; Ocean waves; Ship motion; Ships; Structural models; Thrust; Torque; Transfer functions
• Uncontrolled Terms: Ship hulls; Ship models
• Old TRIS Terms: Power prediction
• Subject Areas: Bridges and other structures; Design; Energy; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00051187
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NSRDC-4059 R&D Rpt
• Files: TRIS
• Created Date: Feb 28 1974 12:00AM