INVESTIGATION OF ICE ACCRETION CHARACTERISTICS OF HYDROPHOBIA MATERIALS.

Abstract

To determine their effectiveness as anti-icing agents, 23 hydrophobic materials were evaluated in a dynamic icing environment. Each substance was examined in a manner that would determine its ice accretion characteristics and ice release properties. No attempt was made to stimulate ice release by either thermal or mechanical means during individual test runs. Ice formed on all the materials which were investigated at the same rate as on the untreated aluminum wing section which was utilized as a test bed. There was no observed release of ice due to aerodynamic forces associated with the test velocities (110 to 150 knots). The minimum ice adhesion force of any product evaluated was 1.8 pounds per square inch, with maximum values in excess of 40 pounds per square inch. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0712712

Entities

People

  • Donald M. Millar

Tags

DTIC Thesaurus Topics

  • Adhesion
  • Aerodynamic Forces
  • Aluminum
  • Environment
  • Hydrophobic Properties
  • Materials
  • Physical Properties
  • Test Beds

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Polar and Arctic Studies
  • Surface Coatings Technology.