A Buoyancy-Propelled-Test-Body Laboratory Facility.

Abstract

The physical form of a buoyancy-propelled-test-body facility and some preliminary test results are described. The facility is a 26-meter-high, 1.067-meter-diameter standpipe which can be filled with water or other liquid. An axisymmetric body rises by buoyancy and is guided up the center on a taut restraining cable. Sensors for measurement of velocity and displacement are incorporated into the guide cable. The standpipe is also equipped to provide pull-down and release of the test body, initial acceleration, and stopping. The confined space of a standpipe within the laboratory permits controlled use of drag reducing polymer in the test liquid and nucleus removal to reduce cavitation. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
AD0785872

Entities

People

  • John M. Killen

Organizations

  • University of Minnesota

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Axisymmetric
  • Buildings And Structures
  • Buoyancy
  • Cavitation
  • Diameters
  • Displacement
  • Measurement
  • Motion
  • Observatories
  • Physical Properties
  • Research Facilities
  • Test Facilities

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Military and Counterinsurgency Studies.
  • Software Engineering

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Orbital Debris