An Appraisal of the Single Rotating Cylinder Method of Liquid Water Content Measurement

Abstract

The theory of the single rotating cylinder method of liquid water content measurement is reviewed with particular emphasis on the various sources of possible error. The errors, although shown to be relatively small, may be reduced by taking into account the growth of the cylinder diameter resulting from the accreted ice, by employing a realistic value of ice density, and by using the actual median volume diameter of the droplet spectrum if this is known. Revised graphs for use with this method are presented. Comparative tests in an icing wind tunnel between the rotating cylinder method and another (blade) method showed substantial agreement, thus giving confidence in the veracity of this method of liquid water content measurement.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1978
Accession Number
ADA955916

Entities

People

  • J. R. Stallabrass

Organizations

  • National Research Council Canada

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Air Flow
  • Air Temperature
  • Aircraft Engines
  • Airspeed
  • Diameters
  • Efficiency
  • Electric Charge
  • Equations
  • Heat Transfer
  • Measurement
  • Sampling
  • Standards
  • Surface Roughness
  • Surface Temperature
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics.
  • Combustion and Flow Dynamics.
  • Systems Analysis and Design