SHALLOW WATER EFFECTS FOR SWATH SHIPS

Shallow water changes the hydrodynamics of SWATH ships considerably. A three-dimensional panel method based on potential flow computes resistance, dynamical sinkage and trim moment well, except near critical depth Froude numbers Fnh approximately equal 1. Disagreement between towing tank results and computations do not necessarily indicate shortcomings of the computations. The test geometry is mathematically described and can be used for validation of codes.

• Supplemental Notes:
  • Ship Technology Res, v 41 n 2, May 1994, p 55 [4 p, 2 ref, 5 fig]
• Authors:
  • Bertram, V
  • Grollius, W
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Aeronautic trim; Navigation; Ship motion; SWATH ships; Wave resistance
• Uncontrolled Terms: Squat
• Old TRIS Terms: Shallow water effects; Trim
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00716278
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Feb 28 1996 12:00AM