基于脉动比预处理FFT的密度波不稳定性边界研究

刘洋; 杨星团; 贾海军

doi:10.7538/yzk.2017.51.12.2154

基于脉动比预处理FFT的密度波不稳定性边界研究

清华大学核能与新能源技术研究院,先进核能技术协同创新中心,先进反应堆工程与安全教育部重点实验室,北京100084

计量
- 文章访问数: 143
- HTML全文浏览量: 0
- PDF下载量: 1044
出版历程
- 刊出日期: 2017-12-19

Study of Instability Boundary of Density Wave-Based on Pulsation Ratio Pre-processing FFT Method

Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, China

摘要

摘要: 两相流不稳定性试验的数据会包含一定程度的噪声信号。在判断两相流不稳定边界时，传统的基于流量脉动量幅值的方法具有局限性。本文研究了一种基于脉动比预处理的快速傅里叶变换（FFT）方法，通过捕捉密度波不稳定发生时频域上的特征信号来确定稳定边界，并对两组不同工况的试验数据进行分析。试验结果表明，本文方法具有较好的准确性。
- 两相流 ,
- 密度波 ,
- 不稳定性 ,
- 傅里叶变换
Abstract: The test data of the two phase flow instability contain some noise signal. When judging the unstable boundary of two-phase flow, the traditional method based on flow fluctuation amplitude has some limitations. In this paper, a method of FFT (fast Fourier transformation) based on pulsating was studied. The stable boundary was determined by capturing the characteristic signal on the frequency domain when the density wave instability occurred. The two sets of test data with different working conditions were analyzed. The results show that the present method has good accuracy.
- two-phase flow ,
- density wave ,
- instability ,
- Fourier transformation

HTML全文

参考文献(16)

[1]	IAEA. Design safety considerations for water cooled small modular reactors incorporating lessons learned from the Fukushima Daiichi accident, IAEA TECDOC No. 1785[R]. Vienna: IAEA, 2016.
[2]	JANG B I, KIM M H, JEUN G. Experimental and computational investigation of a natural circulation system in regional energy reactor 10 MWth[J]. Nuclear Engineering and Design, 2011, 241(6): 2214-2223.
[3]	REYES J N, GROOME J, WOODS B G, et al. Testing of the multi-application small light water reactor (MASLWR) passive safety systems[J]. Nuclear Engineering and Design, 2007, 237(18): 1999-2005.
[4]	李卫华，张亚军，郭吉林，等. 一体化核供热堆Ⅱ型的开发及应用前景初步分析[J]. 原子能科学技术，2009，43(增刊)：215-218.LI Weihua, ZHANG Yajun, GUO Jilin, et al. Development of integrated nuclear heating reactor and its application prospect[J]. Atomic Energy Science and Technology, 2009, 43(Suppl.): 215-218(in Chinese).
[5]	RUSPINI L C, MARCEL C P, CLAUSSE A. Two-phase flow instabilities: A review[J]. International Journal of Heat & Mass Transfer, 2014, 71(3): 521-548.
[6]	徐济鋆. 沸腾传热和气液两相流[M]. 北京：原子能出版社，2001.
[7]	哈宾斯基B,格尔里加B. 动力装置部件中载热质的两相流动不稳定性[M]. 马昌文，译. 北京：中国原子能出版社，2012.
[8]	WANG Y, SEFIANE K. Effects of heat flux, vapour quality, channel hydraulic diameter on flow boiling heat transfer in variable aspect ratio micro-channels using transparent heating[J]. International Journal of Heat & Mass Transfer, 2012, 55(9-10): 2235-2243.
[9]	GUO Y, HUANG J, XIA G, et al. Experiment investigation on two-phase flow instability in a parallel twin-channel system[J]. Annals of Nuclear Energy, 2010, 37(10): 1281-1289.
[10]	黄彦平，马介亮，肖泽军，等. 多管平行通道流动不稳定性类型试验研究[J]. 核科学与工程，2002，22(4)：289-295. HUANG Yanping, MA Jieliang, XIAO Zejun, et al. An experiment on unsteady flow type in parallel multi-channel test element[J]. Chinese Journal of Nuclear Science and Engineering, 2002, 22(4): 289-295(in Chinese).
[11]	吴鸽平，秋穗正，苏光辉，等. 环形窄缝通道内流动不稳定性试验研究[J]. 核动力工程，2007，28(6)：25-28.WU Geping, QIU Suizheng, SU Guanghui, et al. Experimental research on flow instability in vertical narrow annuli[J]. Nuclear Power Engineering, 2007, 28(6): 25-28(in Chinese).
[12]	QIU Suizheng, TAKAHASHI Minoru, JIA Dounan, et al. Density wave instability of sodium boiling two-phase flow in a vertical annulus at low pressure[J]. Journal of Nuclear Science & Technology, 2003, 40(7): 493-500.
[13]	LEE S, MUDAWAR I. Transient characteristics of flow boiling in large micro-channel heat exchangers[J]. International Journal of Heat & Mass Transfer, 2016, 103: 186-202.
[14]	LEE S, MUDAWAR I. Thermal and thermodynamic performance, and pressure oscillations of refrigeration loop employing large micro-channel evaporators[J]. International Journal of Heat & Mass Transfer, 2016, 103: 1313-1326.
[15]	夏庚磊，郭赟，彭敏俊. 平行通道密度波不稳定性研究[J]. 原子能科学技术，2012，46(9)：1074-1079.XIA Genglei, GUO Yun, PENG Minjun. Investigation on density wave instability in parallel channels[J]. Atomic Energy Science and Technology, 2012, 46(9): 1074-1079(in Chinese).
[16]	周源，闫晓，王艳林. 加热双通道密度波流动不稳定性数值研究[J]. 原子能科学技术，2013，47(4)：552-556.ZHOU Yuan, YAN Xiao, WANG Yanlin. Numerical investigation on density wave oscillation of two heated parallel channels[J]. Atomic Energy Science and Technology, 2013, 47(4): 552-556(in Chinese).

施引文献

资源附件(0)

计量

文章访问数: 143
HTML全文浏览量: 0
PDF下载量: 1044
被引次数: 0

基于脉动比预处理FFT的密度波不稳定性边界研究

计量

出版历程

Study of Instability Boundary of Density Wave-Based on Pulsation Ratio Pre-processing FFT Method

计量

出版历程

目录