AIRCRAFT AND PROPULSION OPERATIONAL CONSIDERATIONS RELATED TO INLET DESIGN,

Abstract

Diagnostic tests of the effects of mounting an inlet on the side of a fuselage and under a wing were conducted in a wind tunnel. Full-scale engine tests were conducted to investigate the effects of inlet turbulence on a turbojet. Tests conducted in an altitude facility, which incorporated a choked venturi to provide turbulence, showed that inlet turbulence reduced the engine stall margin. Wind-tunnel tests of an underwing inlet, including the inlet control system, showed the effects of inlet unstart on the stability and control characteristics of a supersonic aircraft. The effect of inlet unstart is a major design parameter in the placement of the propulsion system. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1968
Accession Number
AD0677193

Entities

People

  • Frederick T. Rall Jr

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Control Systems
  • Engines
  • Fluid Mechanics
  • Jet Aircraft
  • Mechanics
  • Propulsion Systems
  • Supersonic Aircraft
  • Test Facilities
  • Turbulence
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow