Comparison of Predicted and Measured Formation Flight Interference Effects

Abstract

Results from a wind tunnel test of two delta wings in close proximity are presented and compared with predictions from a vortex lattice method. The wake effects on lift are slightly overpredicted when the aircraft overlap in the spanwise direction. The wake induced effects on pitching and rolling moment are well predicted. A maximum induced drag reduction of 25% is measured on the trail aircraft, compared with a 40% predicted reduction.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADA411596

Entities

People

  • David R. Gingras
  • William B. Blake

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Aircraft Wings
  • Aircrafts
  • Delta Wings
  • Drag
  • Drag Reduction
  • Flight
  • Flow
  • Formation Flight
  • Tailless Aircraft
  • Vehicles
  • Wind Tunnel Tests
  • Wind Tunnels
  • Wing Tips

Fields of Study

  • Physics
  • Psychology

Readers

  • Fluid Mechanics and Fluid Dynamics.