Effect of Flap Deflection on Section Characteristics of S813 Airfoil; Period of Performance: 1993--1994

Somers, D. M.

National Renewable Energy Laboratory (U.S.)

关键词: Wind Turbines;    Horizontal-Axis Wind Turbine;    Wind Power Airfoils;    Roughness;    Pennsylvania State University;   

DOI  :  10.2172/15011677
RP-ID  :  NREL/SR-500-36335
RP-ID  :  AC36-99-GO10337
RP-ID  :  15011677

美国|英语

来源: UNT Digital Library

【 摘 要 】

The effect of small deflections of a 30% chord, simple flap on the section characteristics of a tip airfoil, the S813, designed for 20- to 30-meter, stall-regulated, horizontal-axis wind turbines has been evaluated theoretically. The decrease in maximum lift coefficient due to leading-edge roughness increases in magnitude with increasing, positive flap deflection and with decreasing Reynolds number.