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Boundary-layer transition and global skin friction measurement with an oil-fringe imaging technique (1993)

Menter, Florian R. ; Mateer, George G. ; Monson, Daryl J.

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Publication Date: 2019-07-13

Description: A new oil-fringe imaging fkin friction (FISF) technique to measure skin friction on wind tunnel models is presented. In the method used to demonstrate the technique, lines of oil are applied on surfaces that connect the intended sets of measurement points, and then a wind tunnel is run so that the oil thins and forms interference fringes that are spaced proportional to local skin friction. After a run the fringe spacings are imaged with a CCD-array digital camera and measured on a computer. Skin friction and transition measurements on a two-dimensional wing are presented and compared with computational predictions.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: SAE PAPER 932550 , (ISSN 0148-7191); 15 p.|SAE, Aerotech ''93; Sep 27, 1993 - Sep 30, 1993; Costa Mesa, CA; United States

Format: text

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