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Multi‐scale and multi‐fractal characteristics of instantaneous velocity signals in impinging stream mixer
Author(s) -
Zhang Jianwei,
Wang Xianwang,
Wang Chunyu
Publication year - 2010
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20268
Subject(s) - fractal , scale (ratio) , hurst exponent , mechanics , vortex , statistical physics , physics , acoustics , mathematics , mathematical analysis , statistics , quantum mechanics
The axial and radial instantaneous velocity signals in impinging stream mixer (ISM) were decomposed to multi‐scale and studied by R/S analysis method. It showed that different fractal structure at different scales can be explained easily by Hurst analysis and there were different trends of Hs with the different positions. Besides, there were some non‐periodic components in the system, and in the process of particles impinged reciprocally, the vortex with different scale emerges.