Surface Ship Testing at the Garfield Thomas Water Tunnel.

Abstract

The 48-inch (121.92 cm) diameter Garfield Thomas Water Tunnel of the Applied Research Laboratory was recently used to compare the relative cavitation characteristics of propellers operating on a surface ship hull. A basic objective of the investigation was to develop a method of using this facility for surface ship propeller evaluations. Evaluation of a propeller operated with a model hull in a water tunnel so that the three-dimensionality of the flow is maintained is one of several techniques of testing surface ship propellers. Although neither Froude nor Reynolds number scaling was applicable, it was demonstrated that meaningful cavitation results could be obtained if the flow conditions in the plane of the propeller matched those measured in towing tank tests where the effect of the free surface was present. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1977
Accession Number
ADA045123

Entities

People

  • A. L. Treaster
  • J. J. Eisenhuth

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Cavitation
  • Diameters
  • Marine Propellers
  • Model Basins
  • Models
  • Propeller Hubs
  • Propellers
  • Research Facilities
  • Reynolds Number
  • Ship Model Basins
  • Ship Models
  • Simulators
  • Static Pressure
  • Test And Evaluation
  • Tunnels
  • Water Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Dynamics.
  • Marine Hydrodynamics