Computational Modeling of a Segmented Projectile

Abstract

This report describes the application of the chimera numerical technique to a multi-body segmented projectile configuration system of interest to the U.S. Army. Computations were performed at a supersonic speed on this configuration which consists of an ogive cylinder projectile with a peg shaped trailing segment. The computed results show the qualitative features of the wake flow field for the projectile with the segment in three different positions: centered, offset, and angled. The segment in the offset position has a strong effect on the flow field in the aft region of the projectile, thus affecting the aerodynamic coefficients of the projectile. The force and moment coefficients of the segment are also significantly affected by the orientation of the segment.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1999
Accession Number
ADA365674

Entities

People

  • Jubaraj Sahu
  • Karen R. Heavey

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aerodynamic Forces
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Modeling
  • Computations
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Geometry
  • Military Research
  • Molecular Dynamics
  • Navier Stokes Equations
  • Orientation (Direction)
  • Symmetry
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Vision.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering

Technology Areas

  • Hypersonics