Base Pressure Computations of the DERA Generic Missile Wind Tunnel Model

Abstract

Computational fluid dynamic simulations were used to compute the aerodynamic coefficients of a body-alone missile and a planar fin missile in the presence of a wind tunnel sting. The investigation was an extension to a previous investigation in which the computed forebody axial force did not compare well with experimental wind tunnel data, while all other forces and moments showed excellent agreement. The current investigation showed that the computed results are accurate, predicting the total axial force to within 5% of the experimental values. The results indicate that the discrepancy in the forebody axial force is due to an inaccurate experimental base pressure measurement.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2005
Accession Number
ADA444636

Entities

People

  • James DeSpirito

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Base Pressure
  • Boundary Layer
  • Coefficients
  • Computational Fluid Dynamics
  • Computations
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Measurement
  • Military Research
  • Models
  • Molecular Dynamics
  • Pressure Distribution
  • Pressure Measurement
  • Simulations
  • Wind Tunnel Models
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation