A High-Fidelity, Roll-Dependent Aerodynamic Model for a Long-Range, High-Speed Missile

Abstract

Several methods are applied to capture the roll-dependent aerodynamics of a high-speed missile. An inviscid computational fluid dynamics (CFD) solver is used over a large targeted test matrix to capture the effects of Mach number, angle of attack, actuator deflections, and aerodynamic roll on the aerodynamic forces and moments. In order to deploy the model to a simulation environment, the CFD results are smoothed using Fourier series, then fit to polynomial expansions in extensive tables. In order to support prediction of four independently controlled actuators, the effects due to deflection are modeled in a local actuator frame, then assembled in the body frame using superposition. The assembled model is validated through comparisons with an additional inviscid CFD prediction and wind tunnel data.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2021
Accession Number
AD1141614

Entities

People

  • Bradley T. Burchett
  • Joseph D. Vasile
  • Joshua T. Bryson
  • Justin L. Paul

Organizations

  • United States Army

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamics
  • Computational Fluid Dynamics
  • Data Sets
  • Fluid Dynamics
  • Fourier Series
  • Mach Number
  • Military Research
  • Models
  • Neural Networks
  • Orientation (Direction)
  • Reliability
  • Simulations
  • Symmetry
  • Transverse
  • Vehicles
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.
  • Fluid Dynamics.