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펌프 섬프장 흡입 조건에 따른 자유표면 보텍스 변동에 관한 연구
박영규(Young Kyu Park),이규명(Kui Ming Li),최윤환(Yoon Hwan Choi),이연원(Yean Won Lee) 한국가시화정보학회 2011 한국가시화정보학회지 Vol.9 No.4
In this study the change of free surface vortex is represented at different times according to height of water and with or without curtain wall installation. The air volume fraction is investigated at each condition of water level and the influence about creation of vortex is analyzed. The height of sump intake is taken as 100mm and the water level is divided into 5 steps. The Sump model is the TSJ model and the curtain wall is applied by HI standard of America. The results shows that the free surface vortex can be identified on the isotropic surface at air volume fraction I %-5% and the vortices make an air column from the free surface to the sump intake and are created and destroyed repeatedly. In the higher water level, less air is absorbed into the intake pipe. After curtain wall installation, the suction rate of the air volume fraction is decreased by 6.7%. The result of the vortex motion according to time, works on a cycle.
이영환,이연원 釜慶大學校 1999 釜慶大學校 論文集 Vol.4 No.1
The design program was developed to predict damages caused by dew condensation when selecting wall components of a building. The program was designed by Visual Basic in the GUI environment. The input values are composed of monthly medium humidity and temperature, material width and code number. The output values are composed of temperature, potential, humidity, pressure, water content of weight, and annual maximum humidity. The types and size of wall components to prevent damages caused by dew condensation can be predicted by this design program.