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Spreading of buoyant discharges
Large bodies of water such as lakes and oceans are often the recipients of waste water discharges that differ in density from the ambient liquid. Discharges that are less dense than the environmental fluid tend to float on the surface whereas denser discharges sink and spread on the bottom. In this paper dimensional arguments coupled with simple order of magnitude force balances are used to show that for both surface and bottom spreading, when buoyancy is conserved, there are two regimes of spreading. The first regime is dominated by balance. Furthermore, it is shown that in the first regime the spreading is somewhat analogous to shock wave propagation in a compressible fluid. The rates of spreading predicted by the analyses in these two regimes, for both finite mass and continuous three-dimensional discharges, are shown to be confirmed by experiments performed by the authors and others.
Spreading of buoyant discharges
Large bodies of water such as lakes and oceans are often the recipients of waste water discharges that differ in density from the ambient liquid. Discharges that are less dense than the environmental fluid tend to float on the surface whereas denser discharges sink and spread on the bottom. In this paper dimensional arguments coupled with simple order of magnitude force balances are used to show that for both surface and bottom spreading, when buoyancy is conserved, there are two regimes of spreading. The first regime is dominated by balance. Furthermore, it is shown that in the first regime the spreading is somewhat analogous to shock wave propagation in a compressible fluid. The rates of spreading predicted by the analyses in these two regimes, for both finite mass and continuous three-dimensional discharges, are shown to be confirmed by experiments performed by the authors and others.
Spreading of buoyant discharges
Verteilung schwimmender Abwassereinleitungen
Chen, J.C. (author) / List, E.J. (author)
1976
12 Seiten, 5 Bilder, 2 Tabellen, 15 Quellen
Conference paper
English
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