EFFECT ON DRAG OF TWO STABLE FLOW CONFIGURATIONS OVER THE NOSE SPIKE OF THE 90MM T316 PROJECTILE

Abstract

Shadowgraphs of the 90mm T316 projectiles in free flight, obtained in the Transonic Range, showed that two different types of flow, both apparently stable, can exist over the cylindrical nose spike of this configuration. The two flows result in a markedly different drag characteristics, differing by as much as 50%. Results of experiments with modified spikes, designed to assure a low drag flow, are briefly described

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1954
Accession Number
AD0479828

Entities

People

  • B. G. Karpov
  • M. J. Piddington

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Drag
  • Flight
  • Free Flight
  • Low Drag
  • Mach Number
  • Machining
  • Projectiles
  • Trajectories

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Systems Analysis and Design