SHIP RESISTANCE IN IRREGULAR WAVES.

Abstract

Several 5-foot ship models were towed in irregular waves and the added resistance measured and compared with the predictions based on spectral method. The transfer function was derived earlier from tests in uniform waves. The results demonstrate that the linear spectral method could underestimate the added resistance of an average cargo ship or a tanker by 25 to 45 percent. For slender hull forms the predictions are between 30 and 75 percent of the measured added resistance in irregular waves, depending upon the ship speed and the severity of the seaway. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0708008

Entities

People

  • O. J. Sibul

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Cargo Ships
  • Hulls (Marine)
  • Models
  • Resistance
  • Ship Models
  • Ships
  • Transfer Functions

Readers

  • Marine Hydrodynamics