NEWTONIAN DRAG OF COATED CYLINDERS

Abstract

Newtonian impact theory is used to examine the variation in ballistic coefficient of a coated cylinder as the thickness of the coating decreases. It is shown that when the density of the coating is less than one-half that of the core-material, an initial value of coating thickness can be chosen which results in a steady increase of the ballistic coefficient as the thickness of the coating tends to zero. The largest such value of coating-thickness, the corresponding minimum value for the ballistic coefficient, and the rate at which the ballistic coefficient rises to that of the bare core are shown to be simple functions of the particular density-ratio.

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Document Details

Document Type
Technical Report
Publication Date
Jan 07, 1963
Accession Number
AD0296790

Entities

People

  • Aubyn Freed

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Ablation
  • Aerodynamic Heating
  • Bodies Of Revolution
  • Coatings
  • Coefficients
  • Dynamic Pressure
  • Elements
  • Equations
  • Flight Paths
  • Free Stream
  • Geometry
  • Government Procurement
  • Governments
  • Materials
  • Thickness
  • Weight
  • Weighting Functions

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Nanocomposite Materials Science