BOTTOM AND SURFACE PROXIMITY EFFECTS ON THE ADDED MASS OF RANKINE OVOIDS

The free-surface and bottom-proximity effects on the added mass of Rankine ovoids of various length-to-diameter ratios were experimentally investigated by vertically oscillating the ovoids normal to their major axis. The results have shown that the bottom-proximity increases the added mass and the free-surface proximity decreases it. Furthermore, the added mass increases with increasing length-to-diameter ratio, i.e., for more cylinder-like ovoids, and approaches that predicted analytically for an infinitely long cylinder. (Modified author abstract)

• Corporate Authors:

  Naval Postgraduate School

  1 University Circle
  Monterey, CA  United States  93943
• Authors:
  • Fickel, M G
• Publication Date: 1973-12

Media Info

• Pagination: 43 p.

Subject/Index Terms

• TRT Terms: Bodies of revolution; Coefficients; Free surface; Mass; Navigation; Oscillation
• Old TRIS Terms: Added mass; Free surface effects; Oscillating bodies; Shallow water effects
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00057060
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Jul 31 1974 12:00AM