S904 and S905 Airfoils: May 1998--January 1999

Somers, D. M.

National Renewable Energy Laboratory (U.S.)

关键词: Blowers;    Wind Power Airfoils;    Roughness;    Pennsylvania State University;    Airfoils;   

DOI  :  10.2172/15011669
RP-ID  :  NREL/SR-500-36338
RP-ID  :  AC36-99-GO10337
RP-ID  :  15011669

美国|英语

来源: UNT Digital Library

【 摘 要 】

A family of natural-laminar-flow airfoils, the S904 and S905, for cooling-tower fans has been designed and analyzed theoretically. The two primary objectives of high maximum lift, relatively insensitive to roughness, and low profile drag have been achieved. The constraint on the lift a zero angle of attack has not been satisfied. The constraints on the pitching moment and the airfoil thicknesses have essentially been satisfied. The airfoils should exhibit docile stalls.