A Multidisciplinary Approach to Aerodynamic Loading of a 2.75-in Rocket With Fins

Abstract

A multidisciplinary effort was undertaken to investigate the effect of structural loading on a rocket of interest to the U.S. Army. This report addresses the element of aerodynamic loading. Computational fluid dynamics techniques have been used to obtain numerical solutions for the flow field of a rocket with and without fins. Computed results have been obtained for a Mach number of 2.0 at 0 deg and 5 deg angles of attack. Qualitative flow field features show the surface pressure on the surface of the rocket The surface pressure data was then extracted from the solution files. Software was developed to couple this data to a structural dynamics solver. The results provided the aerodynamic loading component used during the initial portion of the rocket flight. Preliminary results showing x-stress on the rocket at a 5 deg angle of attack are shown. Additional efforts are needed to generalize and fine tune the CFD/SD methods.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA396618

Entities

People

  • James F. Newill
  • Jubaraj Sahu
  • Karen R. Heavey

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Aerodynamic Loading
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Dynamics
  • Equations Of Motion
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Mach Number
  • Mechanics
  • Military Research
  • Physics Laboratories
  • Pressure Distribution
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.
  • Rocket Propulsion.