NDLI: Feasibility and benefits of laminar flow control on supersonic cruise airplanes

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Feasibility and benefits of laminar flow control on supersonic cruise airplanes

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lacey, T. R. Agrawal, S. Powell, A. G.
Copyright Year	1989
Description	An evaluation was made of the applicability and benefits of laminar flow control (LFC) technology to supersonic cruise airplanes. Ancillary objectives were to identify the technical issues critical to supersonic LFC application, and to determine how those issues can be addressed through flight and wind-tunnel testing. Vehicle types studied include a Mach 2.2 supersonic transport configuration, a Mach 4.0 transport, and two Mach 2-class fighter concepts. Laminar flow control methodologies developed for subsonic and transonic wing laminarization were extended and applied. No intractible aerodynamic problems were found in applying LFC to airplanes of the Mach 2 class, even ones of large size. Improvements of 12 to 17 percent in lift-drag ratios were found. Several key technical issues, such as contamination avoidance and excresence criteria were identified. Recommendations are made for their resolution. A need for an inverse supersonic wing design methodology is indicated.
File Size	4498007
Page Count	120
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890017470
Archival Resource Key	ark:/13960/t8kd6sw8q
Language	English
Publisher Date	1989-07-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Supersonic Cruise Aircraft Research Lift Drag Ratio Feasibility Analysis Velocity Distribution Boundary Layer Control Flow Coefficients Laminar Boundary Layer Supersonic Aircraft Aerodynamic Configurations Supersonic Speed Laminar Flow Applications Programs Computers Boundary Layer Stability Supersonic Transports Fighter Aircraft Leading Edges Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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