한국환경과학회지 (Journal of Environmental Science International)

  • 제22권5호
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  • Pages.571-580
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  • 2013
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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도서지역 건천의 홍수유출 시 흐름 해석

Stream Flow Analysis of Dry Stream on Flood Runoff in Islands

  • Yang, Won-Seok (Department of Civil & Ocean Engineering, Jeju National University) ;
  • Yang, Sung-Kee (Department of Civil & Ocean Engineering, Jeju National University)
  • 투고 : 2012.11.08
  • 심사 : 2013.04.22
  • 발행 : 2013.05.31
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초록

In this study, compared with the result of water surface elevation and water velocity on the establishment of river maintenance basic plan and result of HEC-GeoRAS based GIS, and after use the result of water surface elevation and velocity were observed in the Han stream on Jeju island, analysis 2 dimensional stream flow. the lateral hydraulic characteristics and curved channel of the stream were analyzed by applying SMS-RMA2 a 2 dimensional model. The results of the analysis using HEC-RAS model and HEC-GeoRAS model indicated that the distribution ranges of water surface elevation and water velocity were similar, but the water surface elevation by section showed a difference of 0.7~2.18 EL.m and 0.63~1.16 EL.m respectively, and water velocity also showed differences of maximum 1.58m/sec and 2.67m/sec. SMS-RMA2 analysis was done with the sphere of Muifa the typhoon as a boundary condition, and as a result, water velocity distribution was found to be 1.19 through 3.91 m/sec, and the difference of lateral water velocity in No. 97 through 99 the curved channel of the stream was analyzed to be 1.59 through 2.36 m/sec. In conclusion it is anticipated that the flow analysis of 2 dimension model of stream can reflect the hydraulic characteristics of the stream curved channel or width and shape, and can be applied effectively in the establishment of river maintenance basic plan or management and designing of stream.

키워드

참고문헌

  1. Ahn, S. S., Jung, D. J., Lee, S. I., Kim, W. S., 2012, Study on the Flow Characteristics at Natural Curved Channel by 2D and 3D Models, J. Environ. Sci., 21(4), 471-478.
  2. Ahn, S. S., Lee, S. I., Park, D. I., Kim, W. S., 2011, The Analysis of Hydrological Property with Curvedchannel Type, J. Environ. Sci., 20(10), 1309-1317.
  3. Ahn, S. S., Yim, D. H., Seo, M. J., Lee, H. J., 2008, Sensitivity Analysis of RMA2 Model Parameter Variation With Hydraulic Characteristics of Stream Junction Area, J. Environ. Sci., 17(7), 783-793.
  4. Environmental Modeling Research Laboratory, 2000, SMS RMA-2 User's Manual, Brigham Young University.
  5. Hwang, J. H., Han, K. Y., Nam, K. Y., Choi, S. Y., 2009, The 2D Finite Element Analysis in Nakdong- Kumho River Junction using GIS, J. Korean Asso. Geogr. Inf. Stud., 12(3), 21-34.
  6. Ministry of Construction Transportation, 2009, Basic Plan for River Maintenance (Han Stream)
  7. Seo, I. W., Kim, S. E., Minoura Y., Ishikawa T., 2011, Verification of Two Dimensional Hydrodynamic Model Using Velocity Data from Aerial Photo Analysis, J. Korean Soc. Civil Eng., 31(6B), 515-522.
  8. Yang, S. K., Kim, D. S., Yu, K. K., Kang, M. S., Jung, W. Y., Lee, J. H., Kim, Y. S., You, H. J., 2012, Comparison of Flood Discharge and Velociy Measurements in a Mountain Stream Using Electromagnetic Wave and Surface Image, J. Environ. Sci., 21(6), 739-747.
  9. Yong, C. J., Park, N. H., Kim, C., 2003, River Flow Analysis using 1 and 2 Dimensional Model and Comparison of the Results, J. Korean Soc. Civil Eng., 2673-2679.

피인용 문헌

  1. Estimation of Probable Precipitation considering Altitude in the Jeju Islands vol.23, pp.4, 2014, https://doi.org/10.5322/JESI.2014.4.595
  2. A Proposal of Unit Hydrograph Using Statistical Analysis in Oedo Stream, Jeju vol.24, pp.4, 2015, https://doi.org/10.5322/JESI.2015.24.4.393