Mathematical Modeling of Dispersion in Mixed Estuaries

by Yasar F. Ozturk, Civ. Engr.; MIE (Australia), NATO ENF. D., Asagiayranci, Ankara, Turkey; formerly, Water Quality Engr., Dept. of Local Government, Brisbane, Australia,

Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 1, Pg. 211-228

Document Type: Journal Paper


The use of the conventional dispersion coefficient equations has met with a limited success, and they do not seem to be appropriate in tidal estuaries. An original dispersion coefficient equation has been developed for mixed estuaries. The developed equation, as a function of real time flow depth and four-thirds power of real time tidal velocity, represents isotropic flow conditions. In mixed estuaries the concept of isotropic dispersion may be acceptable. The dispersion model established by this equation represents adequately the rates of dispersion in the Brisbane River estuary in Australia.

Subject Headings: Tides | Mathematics | Mathematical models | Estuaries | Flow duration | Isotropy | Hydro power | Fluid velocity | Australia

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