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Numerical Simulation of Optimization of Performance of a Radial Collector Well for Riverside Groundwater Intake : 수변 지하수 취수를 위한 방사형 집수정 성능의 최적화 수치 모의

DC Field Value Language
dc.contributor.advisor김준모-
dc.contributor.author최소망-
dc.date.accessioned2017-07-19T08:52:58Z-
dc.date.available2017-07-19T08:52:58Z-
dc.date.issued2014-08-
dc.identifier.other000000021588-
dc.identifier.urihttps://hdl.handle.net/10371/131394-
dc.description학위논문 (석사)-- 서울대학교 대학원 : 지구환경과학부, 2014. 8. 김준모.-
dc.description.abstractRiverside groundwater intake has been considered as an effective method to supply sustainably stable quantity and safe quality of the water. The most suitable well type for riverside groundwater intake is a radial collector well because of advantages such as high intake rate and low drawdown. Before construction of a radial collector well in real fields, a quantitative evaluation of its performance and efficiency is necessary to reduce cost and to control amount or quality of intake water.
A series of numerical simulations using a detailed numerical modeling technique is performed to optimize performance of radial collector well. First, a model for an aquifer-river linked radial collector well was constructed to consider effects of interaction of a river and an aquifer. Impacts of the radial arm configurations on performance and efficiency of radial collector well were evaluated. And then, impacts of radial collector well specifications and riverbed characteristics on performance of radial collector well ware evaluated.
In the results of evaluation of impacts of radial arm configurations, performance and efficiency of radial collector wells are affected by the direction of radial arms, the number of radial arms and the angle between radial arms. On the model for an aquifer-river linked radial collector well, the configuration of optimum performance of radial collector well is when 3 radial arms to river and the angle between adjacent to radial arms is 45°. In the results of evaluation of impacts of radial collector well specifications, the length of radial arms is a more sensitive parameter than the opening ratio of radial arms on performance of radial collector well. In the results of evaluation of impacts of riverbed characteristics, performance of radial collector well is affected by thickness of riverbed and conductivity of riverbed. The performance of radial collector well is the highest when the riverbed does not exist. As the conductance of riverbed increases, the performance of radial collector well is optimized more when the riverbed exists. These detailed numerical simulation results provide a useful guideline for applications to other research fields related for riverside groundwater intake using a radial collector well.
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dc.description.tableofcontentsAbstract
Contents
List of tables
List of figures
1. Introduction
2. Detailed numerical modeling technique
2.1. Components
2.2. Implementation
3. Model for an aquifer-river linked radial collector well
4. Impacts of radial arm configurations: Case A
4.1. Radial arm configurations scenarios
4.2. Operating 8 radial arms among 8 radial arms in 360 degree
4.3. Operating 3 radial arms among 8 radial arms in 360 degree
4.4. Operating odd radial arms among 9 radial arms in 180 degree
4.5. Operating 3 radial arms among 9 radial arms in 180 degree
4.6. Summary of impacts of radial arm configurations
5. Impacts of radial collector well specifications: Case B
5.1. Radial collector well specifications scenarios
5.2. Impacts of length of radial arms
5.3. Impacts of opening ratio of radial arms
5.4. Summary of impacts of radial collector well specifications
6. Impacts of riverbed characteristics: Case C
6.1. Riverbed characteristics scenarios
6.2. Impacts of thickness of riverbed
6.3. Impacts of hydraulic conductivity of riverbed
6.4. Summary of impacts of riverbed characteristics
7. Conclusions
References
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dc.formatapplication/pdf-
dc.format.extent6659178 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoen-
dc.publisher서울대학교 대학원-
dc.subjectRiverside groundwater intake-
dc.subjectRadial collector well-
dc.subjectPerformance-
dc.subjectEfficiency-
dc.subjectDetailed numerical modeling technique-
dc.subjectModel for an aquifer-river linked radial collector well-
dc.subjectRadial arm configurations-
dc.subjectRadial collector well specifications-
dc.subjectRiverbed characteristics-
dc.subject.ddc550-
dc.titleNumerical Simulation of Optimization of Performance of a Radial Collector Well for Riverside Groundwater Intake-
dc.title.alternative수변 지하수 취수를 위한 방사형 집수정 성능의 최적화 수치 모의-
dc.typeThesis-
dc.contributor.AlternativeAuthorSo-Mang Choi-
dc.description.degreeMaster-
dc.citation.pagesx, 81-
dc.contributor.affiliation자연과학대학 지구환경과학부-
dc.date.awarded2014-08-
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