Abstract
A review is given of mathematical and computer modeling of many of the physical processes that effect the dilution of tracers released in tidal flows: tidal trapping, differences across the flow in tidal speeds, density currents, flow separation. The modeling approaches given most emphasis are tidal trapping, shear dispersion, chaotic stirring, and particle tracking. The central theme of this review is that during the first few tidal cycles, stretching, twisting, and splitting of the tracer patch gives rapidly increasing rates of dilution. There is a water depth (about 30 m) or estuary width (about 200 m) at which the tidal contribution to the eventual dilution rate is largest (about 3 km2 d−1 or 35 m2 s−1). Careful selection of the position, timing, and release rate of a discharge can allow a given amount of effluent to be diluted much more rapidly and to have a much reduced environmental impact.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
