期刊文献+

SK型静态混合器速度波动信号时滞相关性分析 被引量:2

Delay Time Correlation of Velocity Fluctuation Signal in the Kenics Static Mixer
下载PDF
导出
摘要 利用激光多普勒粒子分析仪对直径为0.04m长径比为1.25的SK型静态混合器瞬时流场进行测量。基于傅立叶变换对采集的瞬时速度波动信号进行分解,得到0~12.5,12.5~25.0,25.0~37.5,37.5~50.0,50.0~62.5,62.5~75.0Hz和大于75Hz的时域信号。利用自相关函数和互信息函数研究各个频率段信号的线性相关和非线性相关性。实验研究表明SK型静态混合器速度瞬时波动信号中62.5Hz以上的信号线性无关,75Hz以上的信号不存在非线性和线性相关性。 The time series of instantaneous velocity in the Kenics static mixer, 0.04 m in diameter and 1.25 in aspect ratio, were conducted with laser Doppler particle analyzer. The signal of velocity fluctuation were decomposed into signals of different frequency band including 0-12.5, 12.5-25.0, 25.0-37.5, 37.5-50.0, 50.0-62.5, 62.5-75 Hz and more than 75 Hz based on Fourier transform. The linear and nonlinear correlation characteristics of signal of different frequency band were evaluated with auto--correlation function and mutual information function, respectively. The experimental results indicate that the signals of more than 62.5 Hz in frequency have no linear correlation, and there are no nonlinear and linear correlation for the time series signal which is over 75 Hz in frequency.
出处 《石油化工高等学校学报》 CAS 2008年第4期73-77,共5页 Journal of Petrochemical Universities
基金 国家"十.五"科技攻关项目(2004BA319B1) 辽宁省重大重点科技项目(2006223001)。
关键词 静态混合器 互信息函数 相关性 瞬时速度 Static mixer Mutual information function Correlation Instantaneous velocity
  • 相关文献

参考文献13

  • 1Darko M Krsti c, Wilhelm.Hoflinger, Andrds K Koris, et al. Energy--saving potential of cross--flow ultrafiltration with inserted static mixer: Application to an oil in--water emulsion[J]. Separation and purification technology, 2007, 57(1) :134--139.
  • 2Douroumis D, Fahr A. Enhanced dissolution of oxcarbazepine microcrystals using a static mixer process [J]. Colloids and surfaces B: Biointerfaces, 2007,59 ( 2 ):208 -- 214.
  • 3金仁村,郑平,王向东,谢嘉.改进型气升式内环流硝化反应器氧传递特性的研究[J].高校化学工程学报,2006,20(1):40-45. 被引量:14
  • 4孟辉波,吴剑华,禹言芳,陈旭.新型静态混合器湍流特性数值模拟[J].化学工程,2008,36(5):20-23. 被引量:12
  • 5Hyun--Seob Song, Sang Phil Han. A general correlation for pressure drop in a Kenics static mixer[J]. Chemical engineering science, 2005, 60 (21):5696--5704.
  • 6孟辉波,吴剑华,禹言芳,龚斌.新型静态混合器流动阻力特性数值研究[J].石油化工高等学校学报,2007,20(4):59-62. 被引量:7
  • 7Regner M, Ostergren K, Tragardh C. Effects of geometry and flow rate on secondary flow and the mixing process in static mixers-- A numerical study[J]. Chemical engineering science, 2006, 61(18) : 6133-- 6141.
  • 8Hobbs D M, Swanson P D, Muzzio F J. Numerical characterization of low Reynolds number flow in the Kenics static mixer[J].Chemical engineering science, 1998, 53(8) :1565--1584.
  • 9Byrde O, Sawley M L. Optimization of a Kenics static mixer for non--creeping flow conditions[J].Chemical engineering journal, 1999,72 (2) : 163 -- 169.
  • 10Hobbs D M, Muzzio F J. Effects of injection location flow ratio and geometry on Kenics mixer performance [J]. AICHE journal, 1997, 43 (12):3121--3132.

二级参考文献57

共引文献49

同被引文献33

引证文献2

二级引证文献8

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部