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Hybrid laminar flow control studyHybrid laminar flow control (HLFC) in which leading edge suction is used in conjunction with wing pressure distribution tailoring to postpone boundary layer transition and reduce friction drag was examined. Airfoil design characteristics required for laminar flow control (LFC) were determined. The aerodynamic design of the HLFC wing for a 178 passenger commercial turbofan transport was developed, and a drag was estimated. Systems changes required to install HLFC were defined, and weights and fuel economy were estimated. The potential for 9% fuel reduction for a 3926-km (2120-nmi) mission is identified.
Document ID
19850002625
Document Type
Contractor Report (CR)
Date Acquired
September 5, 2013
Publication Date
October 1, 1982
Subject Category
AIRCRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
NAS 1.26:165930
D6-49359
NASA-CR-165930
Funding Number(s)
CONTRACT_GRANT: NAS1-15325
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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