Computation of the Roll Moment Coefficient for a Projectile with Wrap- Around Fins

Abstract

Flow field solutions of projectile with wrap-around fins have been computed for velocities ranging from Ma 1.3 to Mach 3. The flow field solutions were computed with a time-marching, 3-D. zonal, full Navier-Stokes code. The roll moment coefficient was computed from the flow field solutions and compared to the roll moment coefficient obtained experimentally for a similar wrap-around fin projectile. The roll moment coefficient computations show favorable agreement with experimental measurements in predicting changes of the roll moment coefficient magnitude and sign as a function of-the Mach number. This demonstrates computational fluid dynamics' capability as a promising method for reliably predicting the roll moment coefficient of projectiles with wrap-around fins.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA260784

Entities

People

  • Harris L. Edge

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Experimental Data
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Geometry
  • Jet Propulsion
  • Leading Edges
  • Mach Number
  • Measurement
  • Standards
  • Three Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Fluid Dynamics (CFD)