EFFLUENT DISPERSAL IN EUROPEAN COASTAL WATERS

D. Prandle

Abstract


The mixing of dissolved material discharged from the Windscale nuclear re-processing plant is examined. The first phase involves a numerical modelling study of large-scale long-term mixing over the entire Continental Shelf. The second phase involves a similar modelling study of near-source mixing processes over a region some 100 km square immediately adjacent to the discharge position. In this latter phase, reproduction of instantaneous peak concentrations is required. The first phase of this simulation has been successfully completed while the second phase is presently being considered. Ironically, it is shown that this second phase poses far more difficult modelling problems and hence the accuracy of simulation attained in the first phase may not be reproduced. The contrasts in these two modelling approaches are examined and their varying complexities explained.

Keywords


dispersal; effluent dispersal; European water

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