Some Instability Problems with Re-Entry Shapes

Abstract

Models of certain ICBM and IRBM nose-cone configurations have shown limit cycle yawing motions in low supersonic and high subsonic flight. For a given configuration the amplitudes of these limit cycles vary with Mach number, and possibly with Reynolds number. In general, the configurations exhibit limit cycles because of nonlinear damping moments, particularly in high subsonic flight. This paper presents the more interesting of these phenomena as observed by model firings in the free flight spark ranges of Ballistic Research Laboratories. These phenomena are correlated, when possible, with variations in flow phenomena.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1959
Accession Number
AD0377344

Entities

People

  • Leonard C. Macallister

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Analog Computers
  • Analogs
  • Computational Fluid Dynamics
  • Computers
  • Differential Equations
  • Digital Computers
  • Equations
  • Flight
  • Flow
  • Free Flight
  • Government Procurement
  • Governments
  • High Temperature
  • Instability
  • Mach Number
  • Munitions
  • Shape
  • Subsonic Flight

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Missile Defense Systems.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow