THE PERFORMANCE GAINS OF USING WIDE, FLUSH BOUNDARY LAYER INLETS ON WATER-JET PROPELLED CRAFT

The application of a wide, flush inlet on a water-jet- propelled craft was investigated to determine performance gains from using primarily low momentum boundary layer flow for producing the propulsion jet. A method of predicting the boundary layer conditions, the pump size, and the overall water-jet system performance is given. Improvement in overall system efficiency or propulsive coefficient of 10 percent to 12 percent over conventional flush inlets is predicted for a planing craft application. (Author)

  • Corporate Authors:

    David Taylor Naval Ship R&D Center

    Propulsion and Auxiliary Systems Department
    Annapolis, MD  United States  21402
  • Authors:
    • Purnell, J G
  • Publication Date: 1975-3

Media Info

  • Pagination: 45 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00136251
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAS-75-45 R&D Rpt.
  • Files: TRIS
  • Created Date: Jul 22 1976 12:00AM