A smoke-wire study of low Reynolds number flow over a NASA LRN(1) - 1007 airfoil sectionSmoke-filament visualization photographs are presented for two-dimensional flow over a NASA LRN(1) - 1007 airfoil section designed specifically for high-efficiency operation at low chord Reynolds numbers. Results are included for chord Reynolds numbers of 60,000, 100,000, and 220,000 and for angles of attack ranging from 0 to 16 degrees. Two kinds of laminar separation bubble are found to develop in the flow over the airfoil. The sites and characteristics of formation of these bubbles are described, and their dimensional properties are estimated. The transition-to-turbulence Reynolds numbers, surface pressure coefficient distributions, and lift coefficients deduced from the measured coefficients are compared with those obtained by other authors.
Document ID
19880023954
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fisher, S. S. (Virginia, University Charlottesville, United States)
Abbitt, J. D. (Virginia Univ. Charlottesville, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Aerodynamics
Meeting Information
Meeting: Aerodynamics at low Reynolds numbers Re greater than 10 to the 4th and less than 10 to the 6th