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Near-wall, three-dimensional turbulence measurements: A challenge for laser velocimetry (1989)

Abrahamson, S. D. ; Johnson, D. A.

In: CASI

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Publication Date: 2019-07-13

Description: A new laser velocimeter approach is presented, which has distinct advantages in near-wall, two- and three-dimensional turbulence measurement applications. The approach does require placing a probe into the flow; but in return, there are some important benefits, such as, the direct measurement of the crossflow velocity, w, at a grazing incidence, and the ability to size optical components for the scale of the flow rather than the size of the facility. Promising resuls were obtained with this approach for a two-dimensional turbulent boundary layer.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: NASA-TM-102252 , A-89261 , NAS 1.15:102252 , International Congress on Applications of Laser and Electro-Optics; Oct 15, 1989 - Oct 20, 1989; Orlando, FL; United States

Format: application/pdf

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