HYDRODYNAMIC DRAG OF SEMISUBMERGED SHIPS

Linearized theory for wave-making resistance is applied to semisubmerged ships. Theoretical and experimental values are compared for submerged hulls, struts, and struts in tandem. Strut forms producing minimum wave-making resistance are calculated at several speeds and waterplane areas for a typical submerged hull. Struts are described in terms of step functions to facilitate an investigation of multiple struts including the effect of drag of decreased wetted surface area.

• Supplemental Notes:
  • Presented for meeting on November 26-30, 1972.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Chapman, R B
• Publication Date: 1972

Media Info

• Features: References;
• Pagination: 6 p.

Subject/Index Terms

• TRT Terms: Design; Fluid resistance; Hulls; Semisubmersibles; Ship motion; Struts; Submersibles; Water waves; Wave resistance
• Uncontrolled Terms: Hull resistance
• Old TRIS Terms: Design process; Hull wave interaction
• Subject Areas: Design; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00044579
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: 72-WA/OCT-5 Paper
• Files: TRIS
• Created Date: Aug 15 1973 12:00AM