Drift-flux model in a sub-channel of rod bundle geometry |
| |
| Authors: | J Enrique Julia Takashi Hibiki Mamoru Ishii Byong-Jo Yun Goon-Cherl Park |
| |
| Affiliation: | 1. Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Campus de Riu Sec, 12071 Castellon, Spain;2. School of Nuclear Engineering, Purdue University, 400 Central Dr., West Lafayette, IN 47907-2017, USA;3. Thermal-hydraulics Research Center, Korea Atomic Energy Research Institute, Taejon 305-600, South Korea;4. Department of Nuclear Engineering, Seoul National University, Seoul 151-742, South Korea;1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400044, China;2. Science and Technology on Reactor System Design Technology Laboratory, NPIC, Chengdu 610041, China;1. School of Nuclear Engineering, Purdue University, 400 Central Drive, West Lafayette, IN 47907, USA;2. School of Power Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China;1. Korea Atomic Energy Research Institute (KAERI), 1045 Daedeok-daero, Yuseong-gu, Daejeon 305-353, South Korea;2. School of Mechanical Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 609-735, South Korea |
| |
| Abstract: | In view of the practical interest of the drift-flux model for two-phase flow analysis, the distribution parameter and drift velocity constitutive equations have been obtained for subcooled boiling flow in a sub-channel of rod bundle geometry. The constitutive equation of the distribution parameter for subcooled boiling flow in a sub-channel is obtained from the bubble-layer thickness model. In this derivation an existing constitutive equation for subcooled boiling flow in a round pipe is modified by taking account of the difference in the flow channel geometry between the sub-channel and round pipe. The constitutive equation of the drift velocity is proposed based on an existing correlation and considering the rod wall and sub-channel geometry effects. The prediction accuracy of the newly developed correlations has been checked against experimental data in a 3 × 3 rod bundle sub-channel, obtaining better predicting errors than the existing correlations most used in literature. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
