哈尔滨工程大学学报2017，Vol.38Issue(7)：1065-1071,7.DOI:10.11990/jheu.201605055
摇摆对单相自然循环系统流动特性的影响分析
Analysis of the effect of rolling motion on flow characteristics of a single-phase natural circulation system
摘要
Abstract
Experiments were conducted to investigate the effect of rolling motion on single-phase flow characteristics in a natural circulation system with heated narrow rectangular channel.Using the self-developed code, the system′s behaviors were numerically simulated in order to further understand the mechanism of effect of rolling motion on flow characteristics.Results indicate that, within the range of experimental parameters, the amplitude of angular acceleration is the eigenvalue of the influence on mass flow rate by rolling motion.For the given thermal parameter combination, the ratio between the mass flow rate under static condition and the average mass flow rate under rolling motion decreases with the increase of the angular acceleration amplitude.According to the calculation results, under static condition, the single-phase natural circulation flow characteristics can be preferably simulated by the code, which has been developed based on the resistance relationship.Furthermore, fluctuant flux has been identified as the main mechanism of the effect of rolling motion on single-phase natural circulation flow resistance characteristics.关键词
摇摆运动/单相流动/自然循环/窄矩形通道/流量/数值模拟Key words
rolling motion/single phase flow/natural circulation/narrow rectangular channel/flow rate/numerical simulation分类
能源科技引用本文复制引用
俞胜之,阎昌琪,王建军,郭雪晴..摇摆对单相自然循环系统流动特性的影响分析[J].哈尔滨工程大学学报,2017,38(7):1065-1071,7.基金项目
国家自然科学基金项目(11675045). （11675045）
