[1] LIU Tong, WANG Xuecai, YI Shubin. Fluid-solid conjugate heat transfer numerical simulation of pressurized water reactor pressurizer surge line subjected to thermal stratification[J]. Proceedings of the CSEE, 33, 79-85, 15(2013).

[2] QIN Jie. CFD research on normally stagnant non-isolable branch lines attached to RCS loop piping[J]. Nuclear Power Engineering, 32, 149-151, 161(2011).

[3] Do Kweon H, Kim J S, Lee K Y. Fatigue design of nuclear Class 1 piping considering thermal stratification[J]. Nuclear Engineering and Design, 238, 1265-1274(2008).

[4] Jo J C, Kang D G. CFD analysis of thermally stratified flow and conjugate heat transfer in a PWR pressurizer surgeline[J]. Journal of Pressure Vessel Technology, 132, 1(2010).

[5] Zhang Y, Lu T, Jiang P X et al. Investigation on thermal stratification and turbulent penetration in a pressurizer surge line with an overall out-surge flow[J]. Annals of Nuclear Energy, 90, 212-233(2016).

[6] NRC U. Thermal stresses in piping connected to reactor coolant systems[R]. NRC Bulletin No.8, 88(1988).

[7] NRC U[S]. Pressurizer surge line thermal stratification(1988).

[8] Kim Y J, Kim M W, Ko E et al. Effect of heat-up transient condition on the thermal stratification in nuclear power plant surgeline[C], 99-104(2010).

[9] Ahn J S, Bluck M, Eaton M et al. A validation of RELAP on predicting nuclear power plant phenomena; proceedings of the International Conference on Nuclear Engineering, F[C](2018).

[10] HE Bin. Research on the flow and heat transfer of thermal stratification in an injection pipeline of steam generator[D](2016).

[11] CAO Qiong, LU Daogang, ZHANG Yuhao et al. Numerical study on thermal stratification of AP1000 ADS-4 A-pipline[C], 15-22(2017).

[12] Cai B A, Gu H F, Weng Y et al. Numerical investigation on the thermal stratification in a pressurizer surge line[J]. Annals of Nuclear Energy, 101, 293-300(2017).

[13] Wang M J, Feng T T, Fang D et al. Numerical study on the thermal stratification characteristics of AP1000 pressurizer surge line[J]. Annals of Nuclear Energy, 130, 8-19(2019).

[14] Lu T, Zhang Y, Xu K L et al. Investigation on mixing behavior and heat transfer in a horizontally arranged tee pipe under turbulent mixing of hot and cold fluid[J]. Annals of Nuclear Energy, 127, 139-155(2019).

[15] Tang B, Zhou Y. Numerical investigation on turbulent penetration and thermal stratification for the in-surge case of the AP1000 pressurizer surge line[J]. Nuclear Engineering and Design, 378, 111176(2021).

[16] YU Deyong, DUAN Yongqiang, CAO Simin et al. Thermal stratification analysis of NPP automatic depressurization discharge pipe[J]. Science & Technology Vision, 1-2(2017).

[17] DING Yudong, WANG Qiang, WANG Hong et al. Discussion on heat transfer coefficient value of external surfaces of heat insulation structure for industrial equipment and pipe[J]. Chemical Engineering Design, 21, 37-45, 1(2011).

[19] Xing L M, Zhuo W B, Chen B D et al. Analysis of the velocity field of thermal stratification in pipes[C](2014).

[20] Bieniussa K W, Reck H. Piping specific analysis of stresses due to thermal stratification[J]. Nuclear Engineering and Design, 190, 239-249(1999).