대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제33권1호
  • /
  • Pages.16-24
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  • 2011
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  • 1225-5025(pISSN)
  • /
  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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대산항 해역의 부유사 확산 수치모사

Numerical Simulations for Dispersion of the Suspended Sediments Near Daesan Coastal Areas

  • 김진혁 (한국원자력연구원 원자력환경안전연구부) ;
  • 박건형 (한국원자력연구원 원자력환경안전연구부) ;
  • 김기철 (한국원자력연구원 원자력환경안전연구부) ;
  • 서경석 (한국원자력연구원 원자력환경안전연구부)
  • Kim, Jin-Hyuk (Nuclear Environmental Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Park, Gun-Hyung (Nuclear Environmental Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, Ki-Chul (Nuclear Environmental Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Suh, Kyung-Suk (Nuclear Environmental Safety Research Division, Korea Atomic Energy Research Institute)
  • 투고 : 2010.05.24
  • 심사 : 2011.01.13
  • 발행 : 2011.01.31
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초록

EFDC 모델을 이용하여 대산항 인근해역의 유속장을 재현하고 개발에 의한 인근 해역의 부유사(SS) 확산현상에 대한 수치 모사가 수행되었다. 대산항 인근 해역의 유속장 재현을 위한 해수유동 수치모형 실험은 EFDC 2차원 모델을 사용하여 조위 시계열 검증 및 조화분석을 통한 검증을 실시한 결과 양호한 재현성을 나타내었다. 대산항 주변해역의 해수 유동장을 이용하여 부유사 확산 수치 실험 결과, 항로 준설시를 부유사(SS)의 확산양상은 창조류시와 낙조류시에 각각 동향~북동향, 서향~남서향으로 확산이 진행되고 있었다. 또한 부유사(SS)의 확산은 시간이 지날수록 대산항 전면해역 및 난지도 주변해역, 가로림만 입구부에서 넓게 분포하는 것으로 나타나 공사가 장기적으로 진행된다면 그 영향은 가중되어 환경오염문제가 심화될 것으로 생각된다.

EFDC model was applied to reproduce velocity fields and to evaluate the dispersion characteristics of suspended sediments (SS) around a Daesan port. Numerical results using two-dimensional hydrodynamic model of EFDC showed good agreements through comparison with the time series and harmonic analysis of the tidal elevations. The dispersion patterns of the suspended sediments using the calculated velocity fields were calculated to move from east to northeast direction in flood tide and from west to southwest in ebb tide for dredging of sea route, respectively. Also, the suspended sediments were widely dispersed into the front areas of a Daesan port, Nanji-do and Garorim bay in the long-term. Therefore, it was inferred that the environmental problems for sea pollution would be occurred seriously if the dredging for sea route would be continued in the long-term.

키워드

참고문헌

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피인용 문헌

  1. Assessing Temporal and Spatial Salinity Variations in Estuary Reservoir Using EFDC vol.56, pp.6, 2014, https://doi.org/10.5389/KSAE.2014.56.6.139