The Ram-Wing Surface Effect Vehicle: Comparison of One Dimensional Theory with Wind Tunnel and Free Flight Results,

Abstract

The one-dimensional channel flow theory with leakage is described. Using this theory lift and drag laws for low aspect ratio ram-wings with side plates are derived. The one-dimensional channel flow theory is corroborated by wind tunnel tests of two ram-wings of significantly different geometry. Lift/drag ratios far superior to existing surface effect vehicles were measured. A series of successful free flight model tests show that complete vehicles designed from the one dimensional channel flow theory can be statically and dynamically stable over a ground clearance range from zero to infinity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1971
Accession Number
AD0727774

Entities

People

  • Mark K. Miller
  • Roger W. Gallington
  • Woodrow D. Smith

Organizations

  • United States Air Force Academy

Tags

DTIC Thesaurus Topics

  • Aspect Ratio
  • Channel Flow
  • Flight
  • Flow
  • Free Flight
  • Free Flight Models
  • Model Tests
  • Surface Effect Vehicles
  • Vehicles
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Mathematical Modeling and Probability Theory.