PNS (Parabolized Navier-Stokes) Computations for Spinning and Fin-Stabilized Projectiles at Supersonic Velocities.

Abstract

The Parabolized Navier-Stokes (PNS) computational technique has been applied to calculate the three-dimensional viscous flow about a standard spinning projectile and a long L/D finned projectile. The results for the spinning projectile are compared with past PNS computations and wind tunnel pressure and force measurements in order to benchmark the update version of the code. Excellent agreement is found and the improvements to the code are shown to provide greater computational efficiency. Results are then presented for the finned projectile configuration and comparison made with predictions from an inviscid code and values from a data base compiled from range firings. Keywords: Computational fluid dynamics; Finned projectiles; Three-dimensional flow; Supersonic viscous flow; Spinning projectiles.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA160393

Entities

People

  • B. J. Guidos
  • L. D. Kayser
  • P. Weinacht
  • W. B. Sturek

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computations
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Geometric Forms
  • Geometry
  • Leading Edges
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Supersonic Flow
  • Three Dimensional
  • Viscous Flow
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.
  • ballistics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow