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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Liu Jiang Wang Yuan Zhang Yang |
| Copyright Year | 2009 |
| Description | Author affiliation: Fluid Engineering Department, School of Energy & Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China (Liu Jiang; Wang Yuan; Zhang Yang) |
| Abstract | To understand the effect of natural wind on sediment transportation, the stationary wavelet transform is utilized to analyze the time-frequency structure of gust measured in the Taklimakan desert. Based on the relationship between wavelet coefficients and turbulence energy structure, a method using the inverse stationary wavelet transform is proposed to generate artificial gust. The results show that the power spectrum of natural gust agrees with the Karman spectrum. Moreover, the gust in the near-surface layer exhibits explicit intermittency of turbulence. The low and high frequency parts of gust respectively determine the sediment transport in the general variation and the intermittency. The analysis of artificial gust and its comparison with natural wind demonstrate the validity of the presented method. |
| File Size | 327483 |
| File Format | |
| ISBN | 9781424438631 |
| DOI | 10.1109/ICEMI.2009.5274176 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-08-16 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wavelet transforms Fourier transforms Energy measurement Wavelet analysis Time frequency analysis natural gust Discrete wavelet transforms Sediments stationary wavelet transform Analytical models Filters Power measurement artificial wind sediment transportation |
| Content Type | Text |
| Resource Type | Article |
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