Comparison of velocity decay, spreading and self-similarity in circular, square and plane jets

L. P. Chua; S. C. Tung; S. C.M. Yu

Comparison of velocity decay, spreading and self-similarity in circular, square and plane jets

L. P. Chua, S. C. Tung, S. C.M. Yu

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

Abstract

The velocity profiles of a circular jet, a square jet and a plane jet with initially laminar boundary layers were measured from the jet exit to about 45 diameters downstream with a single hot-wire probe. The rates of the maximum velocity decay and spreading of the three jets are compared. Within the range of Reynolds numbers investigated, it is found that the square jet has the highest velocity decay rate and plane jet the highest spreading rate. Although the mean velocity profiles reach self-preservation within 8 diameters, it took a longer distance for the three jets to reach self-preservation of the centerline root mean square velocity.

Original language	English
Title of host publication	Proceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM)
Publisher	American Society of Mechanical Engineers
Pages	1
Number of pages	1
ISBN (Print)	0791819612
Publication status	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Earth and Planetary Sciences(all)
Engineering(all)
Environmental Science(all)

Cite this

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abstract = "The velocity profiles of a circular jet, a square jet and a plane jet with initially laminar boundary layers were measured from the jet exit to about 45 diameters downstream with a single hot-wire probe. The rates of the maximum velocity decay and spreading of the three jets are compared. Within the range of Reynolds numbers investigated, it is found that the square jet has the highest velocity decay rate and plane jet the highest spreading rate. Although the mean velocity profiles reach self-preservation within 8 diameters, it took a longer distance for the three jets to reach self-preservation of the centerline root mean square velocity.",

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Comparison of velocity decay, spreading and self-similarity in circular, square and plane jets. / Chua, L. P.; Tung, S. C.; Yu, S. C.M.

Proceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM). American Society of Mechanical Engineers, 1999. p. 1.

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

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ER -

Comparison of velocity decay, spreading and self-similarity in circular, square and plane jets

Abstract

ASJC Scopus subject areas

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