한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제45권5호
  • /
  • Pages.473-480
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  • 2012
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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Compact Finite Volume Method를 이용한 수심적분형 흐름 및 이송-확산 모형 개발

Development of 2D Depth-Integrated Hydrodynamic and Transport Model Using a Compact Finite Volume Method

  • 김대홍 (서울시립대학교 토목공학과)
  • Kim, Dae-Hong (University of Seoul, Department of Civil Engineering)
  • 투고 : 2011.12.16
  • 심사 : 2012.02.29
  • 발행 : 2012.05.31
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초록

고정확도를 보장할 수 있는 Compact Finite Volume Method를 이용하여 수심적분형 흐름 모형과 수심평균된 이송확산 방정식을 해석하는 수치모형 개발과정을 기술하였다. 이차원의 흐름과 파랑의 상호작용에 대한 실험결과와 제시된 수치모형을 이용한 계산결과는 양호하게 일치하였다. 일차원과 이차원공간에서의 흐름에 의한 스칼라의 이송에 관한 수치모의에서도 수차확산이 거의 발견되지 않았고, 매우 정확히 일치하였다. 개수로에서의 난류혼합에 관한 수치모의 결과에서도 합리적인 스칼라의 혼합양상이 관찰되었다.

A two-dimensional depth-integrated hydrodynamic and a depth-averaged passive scalar transport models were developed by using a Compact Finite Volume Method (CFVM) which can assure a higher order accuracy. A typical wave current interaction experimental data set was compared with the computed results by the proposed CFVM model, and resonable agreements were observed from the comparisons. One and two dimensional scalar advection tests were conducted, and very close agreements were observed with very little numerical diffusion. Finally, a turbulent mixing simulation was done in an open channel flow, and a reasonable similarity with LES data was observed.

키워드

참고문헌

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피인용 문헌

  1. A Combined Model of Hydrology, Hydraulics, Erosion and Sediment Transport at Watershed Scale vol.14, pp.5, 2014, https://doi.org/10.9798/KOSHAM.2014.14.5.351