Numerical Analysis of Thermal Stratification due to Turbulence Penetration into Leaking Flow in a T Branch

사각 T분기관내 누설유동의 난류침투에 의한 열성층 발생에 관한 수시해석적 연구

Thermal stratification due to turbulence penetration and in-leakage of valve cause the large thermal stress, which lead to fatigue crack of the piping system of nuclear power plant. So it is needed that numerical and experimental study for the phenomenon is conducted because there have not yet been sufficient study for the relationship between turbulence penetration and thermal stratification. Therefore numerical analysis is done here and respected to give a fundamental method of the approach to the phenomenon.