Research Article
Jul 1975
Point Source Dispersion in Turbulent Open Channels
Publication: Journal of the Hydraulics Division
Volume 101, Issue 7
Abstract
The effect of the initial distribution of dispersant is investigated by obtaining solutions corresponding to different initial instantaneous point and plane source distributions. The governing equations are converted to a tractable system of moment equations which is solved by numerical methods with the aid of a digital computer for the zeroth, first, second, third, and fourth moment of the longitudinal concentration distribution. The initial instantaneous point source distribution is located at η0 = 0, 0.25, 0.50, 0.75, and 1.0. During the initial period of dispersion, the convective transport produces a considerable change in the moments of the dispersing cloud as compared with the Gaussian long dispersion time behavior, and the longitudinal dispersion in a turbulent open-channel flow is strongly dependent on the location of the instantaneous point source.
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Published In
Journal of the Hydraulics Division
Volume 101 • Issue 7 • July 1975
Pages: 789 - 799
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Jul 1975
Published online: Feb 3, 2021
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Authors
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Kemal M. Atesmen
Lect., Dept. of Mathematics, Bogazici Univ., Istanbul, Turkey
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