Dispersion in Two-Layer Stratified Water Bodies

by George C. Christodoulou, (A.M.ASCE), Lect.; Applied Hydr. Lab., National Technical Univ. of Athens, Athens, Greece,
Jerome J. Connor, (M.ASCE), Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,

Serial Information: Journal of the Hydraulics Division, 1980, Vol. 106, Issue 4, Pg. 557-573

Document Type: Journal Paper


A finite element model is developed for the numerical prediction of the dispersion process in a strongly stratified water body idealized as a two-layer system. The physical processes of mixing through the density interface and horizontal dispersion are discussed. Numerical integration in time is based on an implicit iterative trapezoidal scheme. Results for one-dimensional counterflow conditions are verified with analytical solutions. Finally, the model is applied to a large dispersion experiment in Massachusetts Bay.

Subject Headings: Water stratification | Water management | Finite element method | Numerical models | Hydrologic models | Dimensional analysis | Verification | Bays | Massachusetts | United States

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