• Journal of Ocean Engineering and Technology
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• v.13 no.2 s.32
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• pp.147-158
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• 1999

Warm or waste water discharged from offshore-based facilities often causes environmental polution as it is transported to coastal area due to tidal actions. In this research a floating-type current control structure is introduced in order to reduce the pollutant spreading in the coastal area. Effectivenss of the structure is investigated through the numerical experiment which is based on a 3-D finite difference multi-level scheme. The warm-water spreading in the bay is reduced when the draft of the structure increases and its optimum draft is found to be between 0.25h and 0.65h, where h is the water depth. The proposed structure is also tested in the Gohyun Bay and it ts proven to be applied to controllling pollutant spreading if its draft is properly chosen.

• Journal of Ocean Engineering and Technology
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• v.14 no.3
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• pp.20-28
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• 2000

Using the hydraulic and numerical model of semi-enclosed bay (Chinhae Bay), the efficiencies of flow-control structures on the seawater-circulation in the inner bay were investigated. Expecially, this study was confirmed the effectiveness of the flow-control structures at the mouth and narrow channel of Chinhae Bay through the experiments. The system of flow-control structures could enhance the water exchange improvement appropriately. The results of this study can be used as the long-term and integrated environmental impact assessment model in the inner bay.

• Journal of the Society of Naval Architects of Korea
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• v.34 no.4
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• pp.148-157
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• 1997

In this paper, the flow around a V-shaped plate positioned against horizontal flow is numerically simulated by using finite volume method and experimentally visualized in two dimensional tank by dye injection method. The upwelling flow artificially induced by V-shaped plate mixes the stratified stagnant flow. It can be applied to mitigate the eutrophication and stratification of sea in the vicinity of offshore structures.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1996.10a
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• pp.167-171
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• 1996

최근 경제활동의 확충 및 국민소득의 증가에 따라 해안역에 있어서 자연환경의 보존, Water-Front 및 Resort개발의 중요성이 보다 강조되고 있다. 그러나, 기존의 방파제 등과 같은 해안ㆍ항만구조물은 해저에서부터 수면위로 건설되어 해수유동을 차단하므로 해안환경측면에서 그 기능을 충분히 발휘할 수 없기 때문에, 근년에 파랑제어라는 원래의 목적에 부합될 뿐만 아니라, 해안환경 및 생태계측면에서도 우수한 기능을 갖는 잠제에 대한 연구를 활발히 수행하여 오고 있다. (중략)