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Title: Short-circuiting flow-paths within a reservoir: field observations and numerical modelling Authored by: Marti, C., Imberger, J., Craig, R. and Maheswaran, M. Abstract:
Lakes are generally efficient natural settling basins, however in certain circumstances the settling capacity of the lake is affected by short-circuiting pathways. A short-circuiting pathway is a preferred in-lake water path (or flow-through) where the inflowing water is transported towards a certain outlet at a relative faster rate rather than in other regions of the lake. The degree of short-circuiting depends on the inlet-outlet geographic configuration, flow rates, wind disturbances, internal waves motions or gravity flows. This talk will present the results of detailed field observations and numerical modelling conducted to assess the fate and transport of water into Prospect Reservoir (New South Wales, Australia), with a goal to determine the likelihood of short-circuiting of piped water to the nearby reservoir outlet over the short-term. The combination of the field observations and validated numerical modelling has led to a detailed understanding of the dynamics of the reservoir and highlighted how different operational conditions and thermodynamics condition can have a dramatic influence on the water quality in the reservoir.
Reference: Marti, C., Imberger, J., Craig, R. and Maheswaran, M., 2008, Short-circuiting flow-paths within a reservoir: field observations and numerical modelling, |
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