NONLINEAR EFFECTS FOR TWO-DIMENSIONAL FLOWS PAST SUBMERGED BODIES MOVING AT LOW FROUDE NUMBERS

The free-surface gravity flow past a cylinder is solved by inner and outer expansions in the potential plane. The linearized solution, based on an expansion in Epsilon (the ratio between the radius and the depth of immersion) while F (the depth Froude number) is kept of order one, is subsequently expanded in a small F series. The second-order, nonlinear, terms are computed under this double expansion. The analysis is extended to expansions in the physical plane and to the case of a schematical thin body. The free-wave amplitude (and wave resistance) asymptotic sequence converges for the thickness Froude number larger than unity.

• Corporate Authors:

  Hydronautics, Incorporated

  7210 Pindel School Road
  Laurel, MD  United States  20810
• Authors:
  • Dagan, G
• Publication Date: 1971-6

Media Info

• Features: References;
• Pagination: 66 p.
• Serial:
  • Research in Hydrodynamics
  • Publisher: Hydronautics, Incorporated

Subject/Index Terms

• TRT Terms: Force; Free surface; Froude number; Wave resistance; Waves
• Old TRIS Terms: Effects; Free surface effects; Wave forces on structures
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00040945
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: 7103-1 Tech Rpt
• Files: TRIS
• Created Date: Feb 23 1973 12:00AM