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대기경계층 난류유동의 Large Eddy Simulation 해석기법의 알고리즘에 관한 연구
조창주,서성규,박종혁 國立 麗水大學校 環境問題硏究所 1998 環境硏究論文集 Vol.1 No.-
LES(Large eddy simulation) is an intermediate technique between the direct simulation of turbulent flows and the solution of the Reynold-averaged equations. The method is initiated by the introduction of a filtering operation which seperates the large-scale and small scale structures. The large scales are computed explicitly, whereas the small scale necessarily are modeled. In this study, a LES model used three-dimensional incompressible Navier-Stokes equation is calculated for the numerical simulation of turbulent flow in the PBL. Instantaneous and detailed flow of velocity component war obtain with LES and horizontal mean vertical profile of potential temperature was indicated typical profile in the PBL.
曺昌周,金俊泰,金明淑,李琦寧,陣東植,李景植,鄭承和 中央醫學社 1972 中央醫學 Vol.22 No.1
A congenital double ureter with megaureter is of interest because of its rarity and difficulty in diagnosis. This one year old female was admitted with the chief problems of high fever, marked 'abdominal distension and vomiting for five days duration. After confirming the diagnosis by exploratory laparotomy, a nephroureterectomy of the left side was performed. The pathological findings showed a chronic nonspecific inflammation with marked congestion and cystic dilatation of the left kidney and megaureter. We presented a case of congenital double ureter with megaureter and. reviewed the literatures.