WAVES AND WAVE RESISTANCE OF THIN BODIES MOVING AT LOW SPEED: NONLINEAR FREE-SURFACE EFFECTS

Criteria of uniformity of the linearized theory of free-surface gravity flow past submerged or floating bodies based on the thin body perturbation expansion, combining the slenderness parameter, and F, the Froude number, are derived for both two- and three-dimensional flows. These criteria depend on the shape of the leading and trailing edges; as the shape becomes finer the linearized solution becomes valid for smaller F. Uniform first order approximations are derived by two alternative methods: velocity straining and coordinate straining. The nonuniformity of the usual thin body expansion is found to be similar to that encountered in problems characterized by multiple scales. (Modified author abstract)

  • Corporate Authors:

    Hydronautics, Incorporated

    7210 Pindel School Road
    Laurel, MD  USA  20810
  • Authors:
    • Dagan, G
  • Publication Date: 1973-5

Media Info

  • Pagination: 59 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00050839
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: TR-7103-5 Tech Rpt
  • Contract Numbers: N00014-71-C-0080
  • Files: TRIS
  • Created Date: Jan 31 1974 12:00AM