PREDICTION OF THE BEHAVIOR AND PROPULSIVE PERFORMANCE OF SHIPS WITH BULBOUS BOW IN WAVES

A bulbous bow designed with regard only to its smooth-water performance may result in ships that behave unfavorably in rough water. Research programs at the Hamburg and Berlin model basins have provided a quantity of design data needed to predict seakeeping performance. By means of frequency response functions obtained from tests in regular waves, the rough-water performance of ships with and without bow bulbs can be compared computationally. A theoretical study on speed loss under service conditions confirms an earlier statement that ships with bulbous bows have almost the same seakeeping qualities as comparable nonbulbous ships up to Beaufort 6; that is, the bulb may be designed with regard to smooth-water performance only. It is prudent, however, to avoid extremely large bulbs.

• Supplemental Notes:
  • Transactions paper
• Authors:
  • Blume, P
  • Kracht, A M
• Publication Date: 1985

Media Info

• Features: References;
• Pagination: 16 p.
• Serial:
  • Society of Naval Architects and Marine Engineers-Transactions
  • Volume: 93
  • Publisher: Society of Naval Architects and Marine Engineers

Subject/Index Terms

• TRT Terms: Bows; Forecasting; Performance; Propulsion; Seakeeping
• Old TRIS Terms: Bulbous bows; Propulsive performance; Rough seas
• Subject Areas: Marine Transportation; Planning and Forecasting;

Filing Info

• Accession Number: 00651460
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM