NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Inlet-engine matching for SCAR including application of a bicone variable geometry inletAirflow characteristics of variable cycle engines (VCE) designed for Mach 2.32 can have transonic airflow requirements as high as 1.6 times the cruise airflow. This is a formidable requirement for conventional, high performance, axisymmetric, translating centerbody mixed compression inlets. An alternate inlet is defined where the second cone of a two cone centerbody collapses to the initial cone angle to provide a large off-design airflow capability, and incorporates modest centerbody translation to minimize spillage drag. Estimates of transonic spillage drag are competitive with those of conventional translating centerbody inlets. The inlet's cruise performance exhibits very low bleed requirements with good recovery and high angle of attack capability.
Document ID
19780061187
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wasserbauer, J. F.
(NASA Lewis Research Center Cleveland, OH, United States)
Gerstenmaier, W. H.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 78-961
Meeting Information
Meeting: Joint Propulsion Conference
Location: Las Vegas, NV
Country: US
Start Date: July 25, 1978
End Date: July 27, 1978
Sponsors: Society of Automotive Engineers, American Institute of Aeronautics and Astronautics
Accession Number
78A45096
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available