S904 and S905 Airfoils. (Report for May 1998-January 1999).

Somers, D. M.

Technical Information Center Oak Ridge Tennessee

关键词: Airfoils;    Roughness;    Wind power;    Blowers;    Wind turbines;   

RP-ID  :  DE200515011669

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports 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.