第36卷第5期 2016年10月
核科学与工程
Nuclear Science and Engineering
Vol.36No.5
Oct.2016
低流速下涡流二极管单向性实验研究
吴燕华，何兆忠，陈
垫
（中国科学院上海应用物理研究所，上海201800）
摘要：为研究氟盐冷却高温堆（Fluoride-salt-cooledHightemperatureReactor，FHR)非能动余热排出系统的控流装置-—涡流二极管在低流速下的性能参数，建立了实验装置，测试了在水工质下由3D打印尼龙材料涡流二极管的单向特性，并由实验结果得到相同结构尺寸的涡流二极管在FliBe工质下的压降值。研究结果表明，本文实验流量范围内测得的涡流二极管单向性随雷诺数的增加不断升高，最大值为 23。正向流动阻力系数随雷诺数的升高不断降低，反向流动阻力系数随雷诺数的增大先增大后降低。研究结果还表明本文研究的涡流二极管结构不适用于小功率氟盐冷却高温堆非能动余热排出系统的设计。
关键调：氟盐冷却高温堆;非能动衰变热排出系统；涡流二极管，单向性；FLiBe;压降
中图分类号：TL426
文章标志码：A
文章编号：0258-0918(2016)04-0606-05
ExperimentalStudyonthePerformanceof VortexDiode at LowFlow Rate Condition
WUYan-hua,HEZhao-zhong,CHENKun
(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jisding Campus, Shanghai 201800, China) Abstract: The vortex diode is used as a flow control device in the passive decay heat removal system of fluoride salt cooled high-temperature reactor (FHR). To obtain the flow and pressure drop characteristics of the vortex diode in low flow, we carried out a detailed experimental study of a vortex diode fabricated from nylon by a 3D printer in a water loop. And the experimental results are analyzed to obtain the pressure drops of the vortex diode with FliBe at the same structure. The results are as follows: (1) The diodicity of the vortex diode increases with increasing Re in the experimental mass flow range. The maximum of the diodicity reaches 23. (2) With increasing Re, forward flow Euler number (Eu,) decreases, reverse flow Euler number (Eu,) first increased and then decreased. (3) The vortex diode studied in this paper is not fit for a passive decay
修图日期：2015-12-10
基金项目：中国科学院战略性先导科技专项(No.XDA02050100）、上海市科研计划项目（No.14ZR1448400)资助
作者简介：吴蔗华（1988一），女，江西人，助理研究员，工学硕士，现主要从事核安全与核技术相关方面的研究方面的研究工作 606