Design and Experimental Results for the S814 Airfoil

Design and Experimental Results for the S814 Airfoil

NREL

Research output: NLR › Subcontract Report

Abstract

A 24% thick, airfoil, the S814, for the root region of a horizontal-axis wind turbine blade, has been designed and analyzed theoretically and verified experimentally in the low-turbulence wind tunnel of Delft University of Technology Low Speed Laboratory, The Netherlands. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. Theconstraints on the pitching moment and the airfoil thickness have been satisfied. Comparisons of the theoretical and experimental results show good agreement with the exception of maximum lift which is overpredicted. Comparisons with other airfoils illustrate the restrained maximum lift and lower profile-drag of the S814 airfoil, thus confirming the achievement of the objectives.

Original language	American English
Publisher	National Laboratory of the Rockies (NLR)
Number of pages	81
State	Published - 1997

Bibliographical note

Work performed by Airfoils, Incorporated, State College, Pennsylvania

NLR Publication Number

NREL/SR-440-6919

Cite this

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title = "Design and Experimental Results for the S814 Airfoil",

abstract = "A 24\% thick, airfoil, the S814, for the root region of a horizontal-axis wind turbine blade, has been designed and analyzed theoretically and verified experimentally in the low-turbulence wind tunnel of Delft University of Technology Low Speed Laboratory, The Netherlands. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. Theconstraints on the pitching moment and the airfoil thickness have been satisfied. Comparisons of the theoretical and experimental results show good agreement with the exception of maximum lift which is overpredicted. Comparisons with other airfoils illustrate the restrained maximum lift and lower profile-drag of the S814 airfoil, thus confirming the achievement of the objectives.",

author = "NREL",

note = "Work performed by Airfoils, Incorporated, State College, Pennsylvania",

year = "1997",

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N1 - Work performed by Airfoils, Incorporated, State College, Pennsylvania

PY - 1997

Y1 - 1997

N2 - A 24% thick, airfoil, the S814, for the root region of a horizontal-axis wind turbine blade, has been designed and analyzed theoretically and verified experimentally in the low-turbulence wind tunnel of Delft University of Technology Low Speed Laboratory, The Netherlands. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. Theconstraints on the pitching moment and the airfoil thickness have been satisfied. Comparisons of the theoretical and experimental results show good agreement with the exception of maximum lift which is overpredicted. Comparisons with other airfoils illustrate the restrained maximum lift and lower profile-drag of the S814 airfoil, thus confirming the achievement of the objectives.

AB - A 24% thick, airfoil, the S814, for the root region of a horizontal-axis wind turbine blade, has been designed and analyzed theoretically and verified experimentally in the low-turbulence wind tunnel of Delft University of Technology Low Speed Laboratory, The Netherlands. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. Theconstraints on the pitching moment and the airfoil thickness have been satisfied. Comparisons of the theoretical and experimental results show good agreement with the exception of maximum lift which is overpredicted. Comparisons with other airfoils illustrate the restrained maximum lift and lower profile-drag of the S814 airfoil, thus confirming the achievement of the objectives.

M3 - Subcontract Report

PB - National Laboratory of the Rockies (NLR)

ER -

Design and Experimental Results for the S814 Airfoil

Abstract

Bibliographical note

NLR Publication Number

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Cite this