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http://dx.doi.org/10.5394/KINPR.2004.28.10.947

Mixing Zone Analysis on Outfall Plume considering Influence of Temperature Variation  

Kim Ji-Yeon (Research Institute of Industrial Technology)
Lee Joong-Woo (Division of Civil and Environmental System Engineering, Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.28, no.10, 2004 , pp. 947-953 More about this Journal
Abstract
As a large scale port development in coastal waters proceeds step by step and populations in the vicinity of port are getting increased, the issue on 'how to dispose the treated municipal water and wastewater in harbor' brings peoples' concern. The submarine outfall system discharges the primary or secondary treated effluent at the coastline or in deep water, or between these two. The effluent, which has a density similar to that of fresh water, rises to the sea surface forming plume or jet, together with entraining the surrounding sea water and becomes very dilute. We intended in this paper to investigate the impact on dilution of effluent and the behavior of flume under the conditions of the seasonal and spatial temperature variations, which have not been noticeable in designing effective marine outfall system. To predict and analyze the behaviour and dilution characteristics of plume not just with the effluent temperature, but also with the seasonal variation of temperature of surround water, CORMIX( Cornell Mixing Zone Expert System)-GI have been applied. The results should be used with caution in evaluation the mixing zone characteristics of discharged water. We hope to help for the effective operation of outfall system, probable outfall design, protection of water quality, and warm water discharges from a power plant, etc.
Keywords
Outfall; Ocean discharge; CORMIX(Cornell Mixing Zone Expert System) Initial dilution; Mixing characteristics;
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