Accession Number:

ADA801495

Title:

Investigation of Extreme Leading-Edge Roughness on Thick Low-Drag Airfoils to Indicate those Critical to Separation

Corporate Author:

NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS LANGLEY FIELD VA LANGLEY AERONAUTICAL LABORATORY

Report Date:

1942-06-01

Abstract:

Several airfoils, including a conventional NACA 23021 and some low-drag airfoils for which the thickness had been increased to the point that they were considered doubtfully conservative with respect to separation, were investigated as smooth airfoils and after the application of a standard roughness. The results show some of the airfoils to be critical to separation resulting from such flow disturbances. It is concluded, pending the further investigation of separation difficulties, that airfoils sections falling definitely within the conservative range should be used.

Descriptive Note:

Wartime rept.

Pages:

0017

Identifiers:

Communities Of Interest:

Distribution Statement:

Approved for public release; distribution is unlimited.

File Size:

0.69MB