NDLI: Boundary-layer stability analysis of langley research center 8-foot lfc experimental data

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Boundary-layer stability analysis of langley research center 8-foot lfc experimental data

Content Provider	NASA Technical Reports Server (NTRS)
Author	Harris, Charles D. Brooks Jr., Cuyler W. Berry, Scott Dagenhart, J. Ray
Copyright Year	1987
Description	An analytical study of linear-amplifying instabilities of a laminar boundary layer as found in the experimental data of the LaRC/8-foot laminar-flow control (LFC) experiment was completed and the results are presented. The LFC airfoil used for this experiment was a swept, supercritical design which removed suction air through spanwise slots. The amplification of small disturbances by linear processes on a swept surface such as this can be due to either Tollmien-Schlichting (TS) and/or crossflow (CF) mechanisms. This study consists of the examination of these two instabilities by both the commonly used incompressible (SALLY and MARIA) analysis and the more involved compressible (COSAL) analysis. A wide range of experimental test conditions with variations in Mach number, Reynolds number, and suction distributions were available for this study. Experimentally determined transition locations were found from thin-film techniques and were used to correlate the n-factors at transition for the range of test cases.
File Size	643380
Page Count	20
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900003216
Archival Resource Key	ark:/13960/t4xh4h024
Language	English
Publisher Date	1987-12-01
Access Restriction	Open
Subject Keyword	Aerodynamics Laminar Boundary Layer Swept Wings Laminar Flow Airfoils Wind Tunnel Tests Tollmien-schlichting Waves Supercritical Wings Transition Flow Boundary Layer Stability Boundary Layer Control Prediction Analysis Techniques Cross Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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