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칼란드리아 내부의 감속재 열유동 해석을 위한 난류 모델 성능 평가
이공희(Gonghee Lee),방영석(Youngseok Bang),우승웅(Swengwoong Woo) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
It is experimentally well-known that the thermal flow in the CANDU calandria is generally complex and highly turbulent due to the interaction of buoyancy force with inlet jet inertia. In this study, to assess the prediction performance of turbulence models, the results obtained with the commercial flow solver, FLUENT<SUP>(1)</SUP>, is compared with experimental data for Sheridan Park Engineering Laboratory (SPEL) test vessel<SUP>(2)</SUP>. Through this comparative study of turbulence models, it is concluded that turbulence models including the source term to consider the effects of buoyancy on the turbulent flow should be used to predict reliably the thermal flow inside the CANDU calandria.