Computer Modeling of Atmospheric Ice Accretion,

Abstract

A computer model is described to compute the amount of ice accretion on an object under a variety of initial conditions. Numerical techniques are best applied to these problems because of time dependent effects governing the amount of ice collected and also the variety of initial conditions that can lead to ice accumulation. The helicopter rotor icing problem adds an additional complexity since the velocity along the rotor blade varies over a wide range strongly affecting the amounts of ice collected at different blade positions. The physics of ice accretion is reviewed and the accounting for time-dependence in the computer model is described. Some model results are presented and indicate the dependence of ice accretion on velocity, droplet sizes, cloud liquid water content, and temperature for a cylindrical object of constant size. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA068582

Entities

People

  • M. K. Templeton
  • S. F. Ackley

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Boundary Layer
  • Computer Programs
  • Computers
  • Fixed Wing Aircraft
  • Flow Fields
  • Heat Balance
  • Heat Energy
  • Heat Of Fusion
  • Heat Transfer
  • Heat Transfer Coefficients
  • Helicopter Rotors
  • Latent Heat
  • Tangents
  • Thermodynamic Processes
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Polar and Arctic Studies
  • Theoretical Analysis.