Aerodynamic Studies over a Maneuvering UCAV 1303 Configuration

Abstract

The flow past and loads on an unmanned combat air vehicle (UCAV) 1303 was investigated in a water tunnel. The UCAV 1303 is characterized by a non-slender, 47-deg swept-leading-edge delta wing, with a cranked trailing edge, a cropped wing tip and a fuselage. It has no vertical tail. Dye visualization and a five-axis strain gage load data were obtained for both steady and unsteady flows, from which body axis force and moment data were derived. Comparison of the flow with slender delta wings showed a number of remarkable differences such as the presence of two like-sense vortices on the same side of the wing, their simultaneous spiral and bubble bursting; as well as some similarities with the slender delta wing behavior. This paper discusses these and also compares the steady flow and unsteady flow results.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2010
Accession Number
ADA544487

Entities

People

  • Brian K. Mclain
  • Muguru S. Chandrasekhara

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Autonomy

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Configurations
  • Aircrafts
  • Boundary Layer
  • Delta Wings
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Leading Edges
  • Reynolds Number
  • Steady Flow
  • Strain Gages
  • Trailing Edges
  • Vehicles
  • Water Tunnels
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Aerial Unmanned Vehicle Swarm Micro Periodontal Dentistry.
  • Aerospace Engineering
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Autonomy