• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2004.11a
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• pp.127-132
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• 2004

본 연구는 2003 년 9월 내습한 태풍 매미로 인해 마산 진해 용원 지역을 포함하는 가덕수도 인근 해역의 태풍 매미의 풍역변화 특성과 개방형 및 폐쇄성 해역 등의 지형적 특성을 고려한 호안 월류 패턴을 고찰하고 이를 모식화하였다. 태풍 매미 통과시 진해만의 경우는 풍향이 E-ESE 인 시점이 파랑에너지가1 충분히 발달하여 입사할 조건에 해당되고 마산만의 경우는 풍향이 SE-S인 시점이며, 부산신항 인근 해역은 S-SSW의 풍향이 유세한 시점을 중심으로 태풍파랑을 산정하여야 구조물에 미치는 정확한 영향을 평가할 수 있을 것으로 판단된다. 따라서 이상 파랑의 내습에 따른 해양구조물의 안정정을 확보하기 위해서는 태풍 통과시 천해역의 풍역변화에 따른 수위변동 및 파랑장 영향을 해석하고 입사파랑에 의한 구조물의 피해를 최소화할 수 있는 방안의 연구 필요성을 강조할 수 있다.

• Journal of Ocean Engineering and Technology
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• v.19 no.6 s.67
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• pp.22-28
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• 2005

We investigated the characteristics of the overflow/wave overtopping, induced by the storm surge and high waves in Masan bay and Busan Coast during Typhoon 'Maemi', which landed at the southeast coast of the Korean peninsula on September, of 2003, causing a severe inundation disaster. Characteristics of the water level, increase by the overflow / wave overtopping, were discussed in two patterns. One is the increase of water level in the region, located inside of a bay, like Masan fishing port, and the waves are relatively small. The other is in the open sea, in which the waves act directly, as on the seawall in Suyong bay. In the former region, the water level increase was affected by the storm surge, as well as the long period oscillation and waves. In Masan fishing port, about $80\%$ of the water level increase on the quay wall was caused by the storm surge. In the latter one, it was greatly affected by the wave run-up. In Suyong bay, about $90\%$ of the water level increase on the seawall was caused by the wave run-up.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.25 no.5
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• pp.335-347
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• 2013

In February 2008, high storm waves due to a developed atmospheric low pressure system propagating from the west off Hokkaido, Japan, to the south and southwest throughout the East Sea (ES) caused extensive damages along the central coast of Japan and along the east coast of Korea. This study consists of two parts. In the first part, we estimate extreme storm wave characteristics in the Toyama Bay where heavy coastal damages occurred, using a non-hydrostatic meteorological model and a spectral wave model by considering the extreme conditions for two factors for wind wave growth, such as wind intensity and duration. The estimated extreme significant wave height and corresponding wave period were 6.78 m and 18.28 sec, respectively, at the Fushiki Toyama. In the second part, we perform numerical experiments on wave-structure interaction in the Fushiki Port, Toyama Bay, where the long North-Breakwater was heavily damaged by the storm waves in February 2008. The experiments are conducted using a non-linear shallow-water equation model with adaptive mesh refinement (AMR) and wet-dry scheme. The estimated extreme storm waves of 6.78 m and 18.28 sec are used for incident wave profile. The results show that the Fushiki Port would be overtopped and flooded by extreme storm waves if the North-Breakwater does not function properly after being damaged. Also the storm waves would overtop seawalls and sidewalls of the Manyou Pier behind the North-Breakwater. The results also depict that refined meshes by AMR method with wet-dry scheme applied capture the coastline and coastal structure well while keeping the computational load efficiently.