Author(s)

Paul J. Akar

Abstract

The critical aspect of reversing ambient flows on outfall discharges is the partial return of pollutant masses to the vicinity of the discharge during the reverse time phase. This pollutant return increases the actual pollutant concentration. The study experiments the impact of reversing flows on substance surface concentration distribution in the near/intermediate field zone for the case of a submerged single jet discharge. Observational studies show that the jet/plume trajectory in the forward flow phase is generally symmetrical to the reverse flow, and apparently adjusts rapidly to the time varying ambient conditions. The analysis of the collected temperature data show that tidal reversal can have significant heat build-up due to re-entrainment processes with a build-up f

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