Title

The effect of the nozzle top lip thickness on a two-dimensional wall jet

Document Type

Article

Publication Date

5-1-2019

Publication Title

Journal of Fluids Engineering, Transactions of the ASME

Volume

141

Issue

5

Abstract

The effect of the nozzle top lip thickness on a two-dimensional wall jet was examined experimentally in a wind tunnel using hot-wire anemometry. Lip thicknesses of 0.125b, 0.5b, 1b, and 2b, where b is the jet nozzle height, were considered at a Reynolds number of 30,700 based on the jet nozzle height and jet velocity. Noticeable differences in the flow profiles were observed at the jet outlet, but by 10b downstream these differences became insignificant. Different lip thicknesses resulted in different maximum velocity decay rates. The spread of the wall jet was found to be insensitive to the lip thickness.

DOI

10.1115/1.4041560

ISSN

00982202

E-ISSN

1528901X

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