Modeling DO Conditions in Streams with Dispersion
Publication: Journal of Environmental Engineering
Volume 116, Issue 3
Abstract
The tightening of dissolved oxygen (DO) standards in recent years suggests the employment of an accurate predictive method of the BOD‐DO conditions in streams. An advanced method should account for dispersion, which can be significant under transient loadings and attendant large concentration gradients. Such a numerical algorithm is presented in this paper; it is based on the premise that advection is the dominant but not exclusive transport mechanism. The method is accurate (can resolve steep fronts), efficient, robust, and easy to implement. The proposed model has been validated against exact and perturbation‐derived analytical solutions. It has been shown to perform well under quite severe transient source loadings, conditions in which the error of the classical Streeter‐Phelps model is sizeable.
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References
1.
Cunge, J. A. (1969), “On the subject of a flood propagation computation method (Muskingum method).” J. Hydr. Res., 7(2), 205–230.
2.
Fischer, H. B., et al. (1979). Mixing in inland and coastal waters. Academic Press, New York, N.Y.
3.
Koussis, A. D. (1983). “Unified theory of flood and pollution routing.” J. Hydr. Engrg., ASCE, 109(12), 1652–1664.
4.
Koussis, A. D., Saenz, M. A., and Tollis, I. G. (1983). “Pollution routing in streams.” J. Hydr. Engrg., ASCE, 109(12), 1636–1651.
5.
Li, W. H. (1972). “Effects of dispersion on DO‐sag in uniform flow.” J. Sanitary Engrg. Div., 98(1), 169–182.
6.
Miller, W. A., and Cunge, J. A. (1975). “Simplified equations of unsteady flow.” Unsteady flow in open channels, 1, Chapter 5, K. Mahmood and V. Yevjevich, eds., Water Resour. Pub., Fort Collins, Colorado.
7.
Thomann, R. V., and Mueller, J. A. (1987). Principles of surface water quality modeling and control. Harper and Row Publishers, New York, N.Y.
8.
Wastewater engineering: Treatment/disposal/reuse. (1979). 2nd Ed., McGraw‐Hill, New York, N.Y.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 116 • Issue 3 • May 1990
Pages: 601 - 614
Copyright
Copyright © 1990 ASCE.
History
Published online: May 1, 1990
Published in print: May 1990
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