MEASUREMENT OF WAVE RESISTANCE IN WATER OF FINITE DEPTH BY WAVE-PATTERN ANALYSIS

Longitudinal-cut wave-pattern analysis is used to obtain the wavemaking resistance in water of finite depth. By considering the momentum flux through certain control surfaces, a resistance formula can be derived in terms of values of the potential function on a plane behind the ship and perpendicular to the direction of motion or alongside and parallel to this direction. Furthermore, by using the linearized wave theory the resistance can be expressed explicitly in terms of the spectrum of the recorded wave profiles. The wave profiles were measured in model tests carried out for three water depths H/L = 0.125, 0.1583 and 0.2667. The test speed covered both the subcritical and supercritical speed ranges. The total resistance was also measured simultaneously. (Author)

• Corporate Authors:

  University of California, Berkeley

  College of Engineering
  Berkeley, CA  United States  94720
• Authors:
  • Chen, KKY
• Publication Date: 1973-3

Media Info

• Pagination: 102 p.

Subject/Index Terms

• TRT Terms: Electromagnetic spectrum; Fluid resistance; Hulls; Hydrodynamics; Information processing; Marine engineering; Model basins; Ocean waves; Power spectra; Research; Subsonic flow; Supersonic flow; Velocity; Wave resistance
• Uncontrolled Terms: Experimental data; Hull resistance; Model tests; Ship hulls
• Old TRIS Terms: Naval research
• Subject Areas: Design; Hydraulics and Hydrology; Marine Transportation; Research;

Filing Info

• Accession Number: 00048074
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NA-73-1 Tech Rpt
• Contract Numbers: N00014-69-A-0200-102
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM