三维热工水力特性分析基于多孔介质的反应堆堆芯的方法：（Three dimensional thermal hydraulic characteristic analysis of reactor core based on porous media method）.pdfVIP

Annals of Nuclear Energy 104 (2017) 178–190 Contents lists available at ScienceDirect Annals of Nuclear Energy journal homepage: www.elsevier .com/locate/anucene Three dimensional thermal hydraulic characteristic analysis of reactor core based on porous media method Ronghua Chen a,b, Maolin Tian a,b, Sen Chen b,c, Wenxi Tian a,b,⇑, G.H. Su a,b, Suizheng Qiu a,b a School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China b Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, Xi’an Jiaotong University, China c Northwest Institute of Nuclear Technology, Xi’an 710024, China a r t i c l e i n f o a b s t r a c t Article history: Thermal-hydraulic performance in the reactor core was an essential factor in the nuclear power plant Received 23 January 2016 design. In this study, we analyzed the three-dimensional (3-D) thermal-hydraulic characteristic of reactor Received in revised form 17 January 2017 core based on porous media method. Firstly, a 3-D rector pressure vessel (RPV) model was built, including Accepted 21 February 2017 the inlet leg nozzle, downcomer, lower plenum, reactor core, upper plenum and outlet leg nozzle. Porous media model was used to simplify the reactor core and upper plenum. The commercial CFD code ANSYS CFX was employed to solve the governing equations and provide the 3-D local velocity, temperature and Keywords: pressure fie