DESIGN AND OPERATION OF A ROTATING CYLINDER APPARATUS FOR RAREFIED GAS DYNAMICS RESEARCH

Abstract

A high-speed rotating-cylinder apparatus is described for studying gas-surface interaction phenomena. The concrete enclosure is equipped with a hand-operated overhead hoist to handle the balance and drive mechanism prior to vacuum operation. During operation, measurements of drag, pressure, and rotor velocity can be made outside the enclosure. The instrument can be used to provide a shear flow field for the development of instrumentation for nonuniform streams or boundary layers. Initial tests indicated that the apparatus was satisfactory over a wide range of flow conditions from the continuum region (M/Re<1/100) to the free molecular flow region (M/rE<10).

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1953
Accession Number
AD0013194

Entities

People

  • G. J. Maslach
  • J. Frisch

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Boundary Layer
  • Coefficients
  • Fluid Dynamics
  • Fluid Flow
  • Gas Dynamics
  • Geometry
  • Instrumentation
  • Measurement
  • Mechanical Engineering
  • Rarefied Gases
  • Reynolds Number
  • Shear Flow
  • Slip Flow
  • Transducers
  • Vacuum Chambers
  • Vapor Pressure

Readers

  • Aerospace Test and Evaluation
  • Fluid Dynamics.
  • Industrial Economics