The visualization of turbulence data using a wavelet-based method

被引：30
|
作者：
Keylock, C. J.
机构：
[1] Univ Leeds, Earth & Biosphere Inst, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England
来源：
EARTH SURFACE PROCESSES AND LANDFORMS | 2007年 / 32卷 / 04期
关键词：
turbulence; wavelets; quadrant analysis; ejection-sweep cycle; GRAVEL-BED RIVER; SEDIMENT TRANSPORT; REYNOLDS STRESS; FLOW STRUCTURES; CHANNEL FLOW; VELOCITY; TRANSFORM; DYNAMICS;
D O I：
10.1002/esp.1423
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
This technical communication presents some MATLAB((R)) routines for visualizing the structure in turbulent signals based on a standard conditional averaging and thresholding approach. Up to three velocity components may be analysed and the resulting output highlights the time at which important flow events occur as well as the frequency levels that contribute the greatest energy to this particular event. The latter information is derived from a wavelet decomposition of the signal and may assist in providing a process-based explanation of observed flow features. Copyright (c) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码：637 / 647
页数：11
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