Technology readiness for advanced ducted engines

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5577438

Eckardt, D; Brines, G L

The Advanced Ducted Engines (ADEs) currently undergoing development for next-generation passenger aircraft typically possess bypass ratios of the order of 12-25 and specific fuel consumption figures 12-17 percent lower than current advanced turbofans. An extensive technology-readiness program has been mounted on behalf of ADE design definition over the last two years, encompassing among its concerns aircraft/engine-installation interference, low pressure-ratio fan aerodynamics, fan/nacelle interactions (including windmilling and thrust-reversal), acoustic characteristics, transonic-drive turbines, and slender nacelle aerodynamic and mechanical design. Both turbine-driven and geared ADE fans, which may be of single-rotating or contrarotating type, are discussed. 5 refs.

• OSTI ID: 5577438
• Report Number(s): AIAA-Paper-89-2479; CONF-8907118-
• Resource Relation: Conference: 25. American Society of Mechanical Engineers joint propulsion conference, Monterey, CA (USA), 10-13 Jul 1989
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AIRCRAFT
ENGINES
DESIGN
AERODYNAMICS
FUEL CONSUMPTION
TECHNOLOGY ASSESSMENT
TRANSONIC FLOW
TURBOFAN ENGINES
ENERGY CONSUMPTION
FLUID FLOW
FLUID MECHANICS
MACHINERY
MECHANICS
TURBOMACHINERY
330000* - Advanced Propulsion Systems