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고정확도의 도시침수 모의를 위해서는 물리적 개념에 기반한 통합적 수치해석이 필요하다. 본 연구에서는 Lee et al. (2015)이 개발한 1차원 하수관망, 2차원 범람 모형의 국내 적용성을 검토하고, 과거 도시 홍수 사상의 침수 원인 분석을 수행하였다. 본 모형은 이중배수 개념에 기반하여 멘홀 대신 집수구를 지표면과 하...

Once every three years, a tug-of-war festival is held in the region of Chungcheongnamdo dangjingun kijisi-ri in Korea. This research paper is a report based on the observations made at the tug-of-war festival held in April, 2001. The purpose of this report is to analysis between the space-time of a festival.The results are as follows, 1. The time and space of the tug-of-war festival originally had a supernatural element to it; prayer for a good harvest and fortune-telling for the year, with very mystic, religious and leisurely aspects which have all but changed into an exhibition-type attraction.2. It could also be said that the planning and execution of the festival is slowly being taken out of the hands of the villagers and put into that of the Association for tug-of-war Preservation.

Two interacting systems of partial differential equations governing three-dimensional laminar flow of an incompressible viscous fluid undergoing solidification or melting while under the influence of an externally applied magnetic field have been formulated and integrated numerically. The model includes effects of Joule heating, latent heat, and arbitrary magnitude and orientation of gravity and the magnetic field. It allows for arbitrary temperature-dependent physical properties within the melt and the solid phase. The mushy region is captured by varying viscosity orders of magnitude in the mushy region and by allowing latent heat of phase change to be an arbitrary function of temperature. The uniqueness of this approach is in the fact that both liquid and solid phases are treated as incompressible liquids with the solid phase having an extremely high viscosity. It was found numerically that the magnetic field strength and orientation can significantly influence flow field velocity and vorticity, amount of accrued solid, and the solid/liquid interface shape.