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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Marine Environment & Energy
Journal Basic Information
Journal DOI :
The Korean Society for Marine Environmental Engineering
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Volume & Issues
Volume 1, Issue 2 - Aug 1998
Volume 1, Issue 1 - Feb 1998
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Analysis of Containment Capability of Oil Fence in Currents and Waves
Lee Choung Mook ; Kang Kwan Hyoung ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 29~38
This paper summarizes the results of the investigations performed by the authors for a number of years on the performance of oil fences in currents and waves. The leakage inception velocity of currents, the wave-exciting motion of fences and the deformation of the fence skirt due to currents are investigated. The results show that improvement of the fence performance is necessary in order to utilize the oil fences as an effective containing device for spilt oils in ocean environments. As an approach toward improving the fence effectiveness, tandem fences in currents are investigated. It was found that an appropriate deployment of tandem fences of identical configuration could significantly improve the oil containment capability.
Modeling of Sedimentation and Vertical Dispersion of Coastal Sediment Particles Contaminated with PCBs
Lee Du Gon ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 39~46
This study presents a numerical model that can simulate changes of particle size distribution (PSD) of PCB-contaminated coastal sediments. The developed model has one spatial dimension including sedimentation and vortical dispersion as well as coagulation. The reason for considering the vortical transport mechanisms is to calculate residence time of the particles. Using the model and Initial PSD data based on actual coastal sediments contaminated with PCBs, this study shows results of model simulations. Within 48 hours of the simulation time, the PSD changed significantly and the particles were removed from water in different rates between different particle sizes. It also shows that coagulation can act an important role in this process. The model may be useful in assessing the range of resuspended sediments that can pollute neighboring areas during environmental remediation projects such as dredging.
Assessment of Degree of Congestion based on Marine Traffic Flow Simulation for Harbor Area
Lee Han-Jin ; Gong In-Young ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 47~55
In this paper, authors try to assess the marine traffic environment from the viewpoint of the degree of congestion. First, the marine traffic flow simulation is carried out to get the information related to the assessment. The simulation is performed based on the wide investigation of marine traffic environment and some statistical methods. Then the degree of congestion is reasoned by using the reasoning methods of the degree of collision risk made to develop collision avoidance system. The quantified degree of congestion reasoned by this method provides much information needed to the design and the evaluation of marine traffic environment.
Application of Oil Spill Model to the South Sea of Korea
Hong Keyyong ; Lee Moonjin ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 56~65
An oil spill model, Green Sea Ranger(GSR) based on trajectory and fate modeling of spilt oil behavior is introduced. The various physical models on weathering processes are reviewed and those adopted by GSR are described. A database for currents, which is necessary for the real-time simulation of oil spill, is generated on the south sea of Korea. The real-time prediction of tidal currents in the South Sea of Korea is carried out. Four major constituents (M₂, S₂, K₁, O₁ tide) are employed in the prediction, and those angular speeds and phases are determined from the astronomical arguments. The harmonic constants of the constituents are computed by solving shallow-water tide equations. The GSR has user-freiendly GUI and flexible framework which makes it easy to expand the database for sea environments in Korean coastal waters. The GSR is validated by the simulation of O-Sung oil spill caused by a grounded oil tanker in coastal sea near Maemol-do. The simulated trajectory is compared with observed one and it is shown that the GSR gives reasonable estimation on spilt oil bahavior.
Review on the Hydrodynamic Characteristics of Oil Skimmers
Hyun Beom-Soo ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 66~82
The hydrodynamic characteristics of oil skimmers are reviewed. The paper consists of (1) introduction of the general aspects of oil skimmers, including kinds, performance indices, current market situations, (2) the analysis of factors affecting oil- skimming, (3) the review of existing papers with a special focus on hydrodynamic problem and finally (4) conclusions and some suggestions. The purpose of this paper is to draw hydrodynamists' attentions on oil skimmer, more broadly on marine oil spill.
Heavy metals contamination in coastal sediments by the large discharge from wastewater treatment plant
Kwon Young Tack ; Lee Chan Won ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 83~92
Heavy metals concentration in superficial sediment of effluent discharging area was rapidly increased by annual loadings of Zn(8.465 Kg), Ni(3,291 Kg), Cu(1,636 Kg) and Pb(1,250 Kg) from sewage effluent of 63×10/sup 6/ m³/yr. In a consequent result, specially the concentrations of Zn and Cu in the sediment were three times higher than preindustrial reference values. The evaluation by multiple ecological risk indices showed that heavy metals contamination in sediment of discharging area was 'heavily Polluted level' by sediment quality criteria and increased 2.6 times by the degree of contamination. It was also judged that toxicological effects of sediment receiving the primary effluent would occasionally (16～47%) occur by guidelines for adverse biological effect.
Three-Dimensional Numerical Modelling of Water Circulation and Thermal Diffusion
Jung Tae Sung ; Kim Sang Ik ; Kang See Whan ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 93~101
Numerical models have been widely used to understand the structure of coastal currents and the transport mechanisms in regard to the fate of pollutants. This study focuses on the development of a three-dimensional model of coastal circulation and mass transport. The model was used to calculate coastal currents and temperature distributions of the thermal plume discharged from a power plant. The model results were compared with field-observed data. They showed the relatively good agreements with the data. The model can be used to estimate the currents and its mass transport in coastal waters.
Analysis of Wave Load and Mooring System for Ocean Monitoring Facilities - About an estimation method for horizontal force of circular pile in sand -
Yoon Gil Su ; Kim Yong Jig ; Kim Dong Joon ; Kang Sin Young ;
Journal of the Korean Society for Marine Environment & Energy, volume 1, issue 1, 1998, Pages 102~111
Ocean monitoring facilities are divided into two types, fixed type and floating type. This paper deals with wane load calculation and mooring system for a floating monitoring facility. Wave load and drift forces are calculated for an example case of floating monitoring buoy To enlarge holding power of anchor, circular pile model test was performed. A program for horizontal force of circular pile in sand was made and the calculated result showed fairy good agreement with the result of model test. It is expected that this method will provide good estimation for the holding power of the prototype of circular pile anchor which is relied upon SCUBA activity for installation.