Heat Transfer Studies in Gun Tubes

Abstract

A number of heat transfer studies have been performed in gun tube geometries especially those using folded ammunition. These analyses included the evaluation of the peak surface temperature using a new set of boundary conditions, time-dependent heat transfer coefficients and bulk fluid temperatures. The effects of uncertainties in the thermal properties and the effect of three surface coating materials were evaluated. A three-dimensional model of part of the folded ammunition geometry was developed and temperature histories for it were calculated over four rounds of firing. A thermal model was developed describing the temperature histories of a block sliding over a stationary surface. This model is an attempt at evaluating the thermal conditions in rotating band. The preliminary results are very encouraging.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA069649

Entities

People

  • F. D. Varcolik
  • Pete L. Versteegen

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Computer Programs
  • Computers
  • Elements
  • Geometry
  • Heat Transfer
  • Heat Transfer Coefficients
  • Materials
  • Projectiles
  • Rotating Bands
  • Specific Heat
  • Surface Temperature
  • Thermal Conductivity
  • Thermal Diffusivity
  • Thermophysical Properties
  • Three Dimensional
  • Two Dimensional

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials