RECIRCULATION PRINCIPLE FOR GROUND EFFECT MACHINE: PRELIMINARY DESIGN OF A RESEARCH VEHICLE

Abstract

The ejector recirculation lift system was investigated as means of improving the internal-flow and performance characteristics of air cushion vehicles. The concept permits larger unobstructed stowage areas and lower structural weight. In addition, the system minimizes the performance degradation of air cushion vehicles associated with higher speed and increased base pressure. The study involved two phases: ejector optimization and fabrication of an air source having the mass flow and pressure characteristics necessary for a vehicle of moderate size. The results indicate that an energy recovery system of this type is feasible and that performance may be predicted with the same degree of accuracy as for conventional axial flow fan/duct/nozzle systems.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1964
Accession Number
AD0608523

Entities

People

  • K. R. Cossairt

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Boundary Layer
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Ground Effect Machines
  • Human Factors Engineering
  • Hydrodynamics
  • Landing Gear
  • Measurement
  • Physics Laboratories
  • Pressure Distribution
  • Pressure Measurement
  • Test And Evaluation
  • Three Dimensional
  • Turbines
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Fluid Mechanics and Fluid Dynamics.