A Study of Ship Wave Crest Pattern

Lee, Byeong Wook; Lee, Chang‐Hoon

doi:10.9765/kscoe.2016.28.1.44

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…When turbulence causes mixing between freshwater and seawater, the density lines tilt, resulting in partially mixed conditions. In cases of strong turbulence and significant mixing, intense vertical mixing occurs, creating a well-mixed estuary with almost no difference in depth density [24].…”

Section: Salinity Stratification Phenomenonmentioning

confidence: 99%

Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats

Jung,

Lee,

Park

2024

Water

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Anthropogenic development can strongly influence natural river processes, leading to environmental changes that negatively affect important habitats and biodiversity and consequently reduce economically important natural resources. This study investigated the effects of salinity intrusion on the habitat of the clam Corbicula japonica in the Seomjin River estuarine zone. We employed the Environmental Fluid Dynamics Code (EFDC) model, which incorporates topographic data and hydrological changes, to simulate salinity. Two salinity measurement facilities were installed in Seomjin River estuarine and operated to optimize the EFDC model. The results show that reduced flow rates due to intake have a negligible impact on the increased salinity. Maintaining optimal salinity (15–20 psu) during neap tides at the Seomjin River Bridge requires constant high flow rates, which poses significant challenges. Saltwater stratification is identified as the primary cause of pronounced salinity stratification, particularly during neap tides. Addressing this issue through river discharge and intake facility operation is challenging. Structural measures, including riverbed restoration and underwater barriers, are recommended to improve resistance to seawater intrusion. Future research should aim to develop scenarios to reduce salinity, quantify the reduction efficiency, and propose region-specific measures.

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Section: Salinity Stratification Phenomenonmentioning

confidence: 99%

Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats

Jung,

Lee,

Park

2024

Water

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“…그러나 기계 구조물이 부식 환 경 하에서 피로하중을 받게 되면 파괴속도는 더욱 빨라지게 된다. 이때 발생하는 부식피로에 의한 손 상정도는 반복하중에 의한 기계적 손상과 부식에 의한 전기화학적 손상을 중첩시킨 것보다 훨씬 크 기 때문에 예기치 못한 사고가 산업현장에서 발생 할 수 있다 2) . 따라서 부식 환경 조건에서 기계 구 조물 재료의 종류에 따른 쇼트피닝 가공 기술이 전기화학적 거동에 미치는 영향을 규명할 필요가 있다 3,4) .…”

Section: 서 론unclassified

Effects of Shot Peening Projection Pressure on Electrochemical Characteristics of ALBC3 Alloy in Seawater

Han¹,

Im²,

Kim³

2014

Journal of the Korean institute of surface engineering

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The effects of shot peening pressure on electrochemical and surface morphological characteristics of ALBC3 alloy were investigated in this work. The surface hardness of ALBC3 alloy was improved by shot peening process under all shot peening pressures between 2 and 5 bar, and the hight value of surface hardness was observed to be about 420 Hv at 4 bar of the shot peening pressure. The shot peened surface presented very rough surface due to shot ball collision. The result of anodic potentiodynamic polarization in seawater revealed that there is no significant difference between the shot peened and non-shot peened specimen in terms of corrosion characteristics. Therefore, the optimum projection pressure is determined to be 4 bar.

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A Study of Ship Wave Crest Pattern

Cited by 2 publications

References 2 publications

Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats

Cause Analysis of Salinity Intrusion by Environmental Changes Considering Water Intake and Sand Mining on Seomjin River Estuary Using Model for Maintaining Corbicula Habitats

Effects of Shot Peening Projection Pressure on Electrochemical Characteristics of ALBC3 Alloy in Seawater

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