HYDROSTREAK WATER SCOOP STUDY

Abstract

A new vertical free-jet hydrodynamic test facility is checked out during a series of tests of ram inlets, fully submerged bodies and discs, surface piercing struts, and low aspect ratio planing models. Test conditions include Froude number of infinity, cavitation number of zero, and Reynolds Number of 1.5 x 10 to the 6th power. Excellent agreement is found with available results from the literature wherever comparison is possible. Cambered and flat planing surfaces of several plan forms are tested from initial water contact through full wetting to deep submergence. Lift drag ratios near 10 are found in several cases. A complete water scoop configuration is established for high speed overwater vehicle application and its lift, drag, and pressure recovery fully validate the scoop performance assumptions incorporated into previous Hydrostreak performance estimates.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1962
Accession Number
AD0290312

Entities

People

  • N. B. Hirsh
  • R. W. Mcjones

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Agreements
  • Aircrafts
  • Bodies Of Revolution
  • Drag
  • Dynamic Pressure
  • Fluid Flow
  • Free Stream
  • Froude Number
  • Geometry
  • Hydrodynamics
  • Load Cells
  • Measurement
  • Models
  • Planing Surfaces
  • Pressure Measurement
  • Test Facilities
  • Vehicles

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Marine Hydrodynamics