Large-eddy Simulation of Temperature Fluctuation Characteristics of Lead Bismuth Eutectic Alloy in Triple Jet

Guo Chao; Xu Jiangming; Liu Songtao; Miao Yiran

doi:10.13832/j.jnpe.2024.060038

Article Contents

Article Navigation > Nuclear Power Engineering > 2025 > Accepted Manuscript

Guo Chao, Xu Jiangming, Liu Songtao, Miao Yiran. Large-eddy Simulation of Temperature Fluctuation Characteristics of Lead Bismuth Eutectic Alloy in Triple Jet[J]. Nuclear Power Engineering. doi: 10.13832/j.jnpe.2024.060038

Citation:

Guo Chao, Xu Jiangming, Liu Songtao, Miao Yiran. Large-eddy Simulation of Temperature Fluctuation Characteristics of Lead Bismuth Eutectic Alloy in Triple Jet[J]. Nuclear Power Engineering. doi: 10.13832/j.jnpe.2024.060038

Citation:

PDF( 9544 KB)

Large-eddy Simulation of Temperature Fluctuation Characteristics of Lead Bismuth Eutectic Alloy in Triple Jet

doi: 10.13832/j.jnpe.2024.060038

Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2024-05-11
Rev Recd Date: 2024-09-25

Available Online: 2025-04-22

Abstract

Abstract

In order to study influence of velocity on LBE temperature fluctuations, temperature fluctuation characteristics of lead bismuth eutectic alloy in triple jet was simulated. Firstly, three turbulent models were used to analyze temperature fluctuations characteristics of sodium in triple jet. The temperature and velocity fields at different times were evaluated and temperature fluctuation characteristics were predicted successfully by large eddy simulation (LES) and LES is suitable for analyzing temperature fluctuations characteristics of liquid metal. Secondly, LES was employed to simulate temperature fluctuation characteristics of lead bismuth eutectic alloy(LBE) in triple jet at different velocities and velocity ratios. Finally, by analyzing the influence of different velocity ratios and different velocities, it is found that the amplitude and frequency of temperature fluctuation increases as the velocity increases due to that increase of velocity enhanced turbulence. The temperature fluctuation characteristics of LBE alloy in triple jet were analyzed and it could be anticipated to support the subsequent investigation of temperature fluctuations of LBE cooled fast reactor.
- Temperature fluctuation,
- Large-eddy Simulation,
- Triple jet model

FullText(HTML)

References(15)

References

[1]	吴宜灿,柏云清,宋勇,等. 中国铅基研究反应堆概念设计研究[J]. 核科学与工程,2014, 34(2): 201-208.
[2]	彭天骥,顾龙,王大伟,等. 中国加速器驱动嬗变研究装置次临界反应堆概念设计[J]. 原子能科学技术,2017, 51(12): 2235-2241. doi: 10.7538/yzk.2017.51.12.2235
[3]	WANG C L, WEI S Y, TIAN W X, et al. RETRACTED: core design and analysis of a lead-bismuth cooled small modular reactor[J]. Annals of Nuclear Energy, 2019, 133: 511-518. doi: 10.1016/j.anucene.2019.06.019
[4]	刘紫静,赵鹏程,张斌,等. 超长寿命小型自然循环铅铋快堆堆芯概念设计研究[J]. 原子能科学技术,2020, 54(7): 1254-1265. doi: 10.7538/yzk.2019.youxian.0720
[5]	ALEMBERTI A, SMIRNOV V, SMITH C F, et al. Overview of lead-cooled fast reactor activities[J]. Progress in Nuclear Energy, 2014, 77: 300-307. doi: 10.1016/j.pnucene.2013.11.011
[6]	GELINEAU O, ESCARAVAGE C, SIMONEAU J P, et al. High cycle thermal fatigue – experience and state of the art in French LMFRs[C]//16th International Association for Structural Mechanics in Reactor Technology. Washington: IASMiRT, 2001: 12-17.
[7]	CHELLAPANDI P, VELUSAMY K. Thermal hydraulic issues and challenges for current and new generation FBRs[J]. Nuclear Engineering and Design, 2015, 294: 202-225. doi: 10.1016/j.nucengdes.2015.09.012
[8]	ROELOFS F, GERSCHENFELD A, TARANTINO M, et al. Thermal-hydraulic challenges in liquid-metal-cooled reactors-ScienceDirect[J]. Thermal Hydraulics Aspects of Liquid Metal Cooled Nuclear Reactors, 2019: 17-43.
[9]	TOKUHIRO A, KIMURA N. An experimental investigation on thermal striping: mixing phenomena of a vertical non-buoyant jet with two adjacent buoyant jets as measured by ultrasound Doppler velocimetry[J]. Nuclear Engineering and Design, 1999, 188(1): 49-73. doi: 10.1016/S0029-5493(99)00006-0
[10]	KIMURA N, MIYAKOSHI H, KAMIDE H. Experimental investigation on transfer characteristics of temperature fluctuation from liquid sodium to wall in parallel triple-jet[J]. International Journal of Heat and Mass Transfer, 2007, 50(9-10): 2024-2036. doi: 10.1016/j.ijheatmasstransfer.2006.09.030
[11]	CHOI S K, KIM S O. Evaluation of turbulence models for thermal striping in a triple jet[J]. Journal of Pressure Vessel Technology, 2007, 129(4): 583-592. doi: 10.1115/1.2767337
[12]	ANGELI P E. Verification and validation of LES of a triple parallel jet flow in the context of a thermal striping investigation[J]. Nuclear Engineering and Design, 2019, 353: 110210. doi: 10.1016/j.nucengdes.2019.110210
[13]	TENCHINE D, VANDROUX S, BARTHEL V, et al. Experimental and numerical studies on mixing jets for sodium cooled fast reactors[J]. Nuclear Engineering and Design, 2013, 263: 263-272. doi: 10.1016/j.nucengdes.2013.06.001
[14]	ERRICO O, STALIO E. Direct numerical simulation of turbulent forced convection in a wavy channel at low and order one Prandtl number[J]. International Journal of Thermal Sciences, 2014, 86: 374-386. doi: 10.1016/j.ijthermalsci.2014.07.021
[15]	Chacko S , Chung Y M , Choi S K , et al. Large-eddy simulation of thermal striping in unsteady non-isothermal triple jet[J]. International Journal of Heat and Mass Transfer, 2011, 54(19): 4400-4409. doi: 10.1016/j.ijheatmasstransfer.2011.05.002