Author(s): N. Rajaratnam; J.A. Humphries

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Abstract: This paper presents the results of an experimental study on the diffusion of plane and bluff turbulent surface jets. For plane surface jets, it has been found that its length scale grows at the same rate as a plane wall jet with its velocity scale being about 0.9 times the corresponding value for the plane free jet. For bluff surface jets, the vertical length scale increases at approximately the same rate as bluff wall jet whereas its transverse length scale grows at about half the rate of the corresponding bluff wall jets. The velocity scale decays inversely with the longitudinal distance, but the constant in the velocity scale relation is somewhat higher than that for the corresponding free circular jet.

DOI: https://doi.org/10.1080/00221688409499387

Year: 1984