PDF全文下载:2015060680
樊春玲a, 李浩杰a, 孙迎慧b
(青岛科技大学 a.自动化与电子工程学院;b.传播与动漫学院,山东 青岛 266042)
摘要: 运用多尺度化的基本尺度熵方法研究了几种典型信号的复杂度特性,研究发现多尺度化的基本尺度熵方法具有计算速度快、抗干扰的特点,能够用来分析时间序列的复杂性。然后运用多尺度基本尺度熵方法对不同工况下两相流的流型特性进行了研究。结果表明多尺度化的基本尺度熵方法不仅能够识别不同流型,而且还能够表征流型的动态演化特性,为两相流的流型特性研究提供了一种新的方法。
关键词: 气液两相流; 多尺度化的基本尺度熵; 流型特性
中图分类号: TP 273 文献标志码: A
Characterization of Twophase Flow Pattern Based on Multiscale Basescale Entropy
FAN Chunlinga, LI Haojiea, SUN Yinghuib
(a.College of Automation and Electronic Engineering; b.College of Communciation and Animation, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: We used the multiscale basescale entropy (MBE) method to study the complexity of several typical signals. The results show this method needs fewer data and less computation, and has antiinterference ability, which can be used to study the deterministic of complex sequences. In addition, the characteristic analysis of twophase flow patterns under different conditions was researched in this paper. The results show that the MBE method can distinguish the different flow patterns, and can characterize the evolution characteristics of twophase flow pattern. It provides a new method for the study of twophase flow pattern.
Key words: gasliquid twophase flow; multiscale basescale entropy; flow characteristics
收稿日期: 20141117
基金项目: 山东省自然科学基金项目(ZR2012FQ023).
作者简介: 樊春玲(1975—), 女,副教授.
文章编号:16726987(2015)06068005; DOI: 10.16351/j.16726987.2015.06.017