Computational Fluid Dynamics Modeling of Multi-body Missile Aerodynamic Interference

Abstract

Computational fluid dynamics (CFD) calculations have been performed for a multi-body system consisting of a main missile and a number of submunitions. Numerical flow field computations have been made for various orientations and locations of submunitions using an unsteady, zonal Navier-Stokes code and the chimera composite grid discretization technique at transonic speeds and zero degree angle of attack. Both steady state and unsteady numerical results have been obtained and compared for two submunitions and a missile system. Computed results show the details of the expected flow field features, including the shock interactions. Computed results are compared with limited experimental data obtained for the same configuration and conditions and are generally found to be in good agreement with the data. Comparison of the unsteady and steady state results shows an appreciable change in the aerodynamic forces and moments.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1998
Accession Number
ADA354107

Entities

People

  • Earl N. Ferry
  • Harris L. Edge
  • Jubaraj Sahu
  • Karen R. Heavey

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Boundary Layer
  • Composite Materials
  • Computational Fluid Dynamics
  • Computations
  • Dynamics
  • Equations
  • Experimental Data
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Military Research
  • Molecular Dynamics
  • Orientation (Direction)
  • Simulations
  • Steady State
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Munitions and Ordnance Engineering