Numerical Experiment of Wave Attenuation considering Behavior of Vegetation Zone

Jeong, Yeon Myeong; Hur, Dong-Soo

doi:10.9765/kscoe.2016.28.4.232

Cited by 3 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, recent studies have numerically represented the sway _________________________________________________________________________________________________ Journal of Coastal Research, Special Issue No. 116, 2023 motion of vegetation and analyzed its wave attenuation (Chen and Zou, 2019;Jeong and Hur, 2016;Jeong et al, 2019;Luhar and Nepf, 2016;Zeller et al, 2014). Research on wave attenuation using vegetation is actively conducted.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Shoreline Change Due to the Installation of Hybrid Coastal Structure with Submerged Aquatic Vegetation (SAV)

Hur,

Shin,

Lee

et al. 2024

Journal of Coastal Research

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Analysis of Shoreline Change Due to the Installation of Hybrid Coastal Structure with Submerged Aquatic Vegetation (SAV)

Hur,

Shin,

Lee

et al. 2024

Journal of Coastal Research

View full text Add to dashboard Cite

“…Van Veelen et al (2020) performed a hydraulic model experiment on the effect of changes in the vegetation material on wave height attenuation and flow velocity using flexible and rigid vegetation with the same shape and size and different materials. Jeong and Hur (2016) developed a bidirectional coupled analysis technique by combining the discrete element method with the wave field model and numerically examined the wave attenuation effect according to the behavioral characteristics of vegetation.…”

mentioning

confidence: 99%

Analysis of Hydraulic Characteristics According to the Cross-Section Changes in Submerged Rigid Vegetation

Lee¹,

Jeong²,

Kim³

et al. 2022

J. Ocean Eng. Technol.

View full text Add to dashboard Cite

<i>Recently, not only Korea but also the world has been suffering from problems related to coastal erosion. The hard defense method has been primarily used as a countermeasure against erosion. However, this method is expensive and has environmental implications. Hence, interest in other alternative methods, such as the eco-friendly vegetation method, is increasing. In this study, we aim to analyze the hydraulic characteristic of submerged rigid vegetation according to the cross-sectional change through a hydraulic experiment and numerical simulation. From the hydraulic experiment, the reflection coefficient, transmission coefficient, and energy dissipation coefficient were analyzed according to the density, width, and multi-row arrangement of the vegetation zone. From numerical simulations, the flow field, vorticity distribution, turbulence distribution, and wave distribution around the vegetation zone were analyzed according to the crest depth, width, density, and multi-row arrangement distance of the vegetation zone. The hydraulic experiment results suggest that the transmission coefficient decreased as the density and width of the vegetation zone increased, and the multi-row arrangement condition did not affect the hydraulic characteristics significantly. Moreover, the numerical simulations showed that as the crest depth decreased, the width and density of vegetation increased along with vorticity and turbulence intensity, resulting in increased wave height attenuation performance. Additionally, there was no significant difference in vorticity, turbulence intensity, and wave height attenuation performance based on the multi-row arrangement distance. Overall, in the case of submerged rigid vegetation, the wave energy attenuation performance increased as the density and width of the vegetation zone increased and crest depth decreased. However, the multi-row arrangement condition did not affect the wave energy attenuation performance significantly.</i>

show abstract

Study on Wave Reduction and Beach sand Capture Performance of Artificial Coral Reefs for In-situ Application

Hong¹,

Kim²,

Choi³

et al. 2018

J. Ocean Eng. Technol.

View full text Add to dashboard Cite

Because of the increase in coastal erosion problems, many studies have been conducted to prevent coastline retreat by developing low-cost, highly effective countermeasures. We developed the artificial coral reefs (ACRs) method as part of this research trend. To verify its coastal protection performance, we carried out performance tests on its wave attenuation and beach sand capture ability, which are the key barometers for this newly developed technology. In this study, three different types of methods, including natural beach, TTP, and ACRs, were used to determine the coastal protection efficiency under both ordinary and storm wave conditions. Based on the results of this study, ACRs were found to have the best wave attenuation performance and captured more than 20% of the total erosion area. This means the ACR method can be applied as a reliable countermeasure to protect a coastal zone.

show abstract

Numerical Experiment of Wave Attenuation considering Behavior of Vegetation Zone

Cited by 3 publications

References 10 publications

Analysis of Shoreline Change Due to the Installation of Hybrid Coastal Structure with Submerged Aquatic Vegetation (SAV)

Analysis of Shoreline Change Due to the Installation of Hybrid Coastal Structure with Submerged Aquatic Vegetation (SAV)

Analysis of Hydraulic Characteristics According to the Cross-Section Changes in Submerged Rigid Vegetation

Study on Wave Reduction and Beach sand Capture Performance of Artificial Coral Reefs for In-situ Application

Contact Info

Product

Resources

About