Title

Effect of a Triangular Rib on a Flat Plate Boundary Layer

Document Type

Article

Publication Date

1-1-2016

Publication Title

Journal of Fluids Engineering, Transactions of the ASME

Volume

138

Issue

1

Abstract

The flow structure downstream of a triangular rib over a thin plate placed in a wind tunnel was experimentally investigated using a boundary layer hotwire anemometer. Flow and boundary layer characteristics, such as thickness, shape, and turbulence parameters, were studied at different freestream velocities and streamwise locations corresponding to ReX of 1.7 × 104-2.8 × 105 for plates without and with a leading edge rib. It was found that the boundary layer of the flow over a ribbed wall was 3-3.5 times thicker and had higher turbulence intensity and smaller turbulence length scales compared to its smooth wall counterpart.

DOI

10.1115/1.4031161

ISSN

00982202

E-ISSN

1528901X

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