跳到主要导航 跳到搜索 跳到主要内容

Stationary wavelet-based analysis and simulation of unsteady wind in aeolian sand transport

  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

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.

源语言英语
主期刊名ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments
3789-3794
页数6
DOI
出版状态已出版 - 2009
活动9th International Conference on Electronic Measurement and Instruments, ICEMI 2009 - Beijing, 中国
期限: 16 8月 200919 8月 2009

出版系列

姓名ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments

会议

会议9th International Conference on Electronic Measurement and Instruments, ICEMI 2009
国家/地区中国
Beijing
时期16/08/0919/08/09

学术指纹

探究 'Stationary wavelet-based analysis and simulation of unsteady wind in aeolian sand transport' 的科研主题。它们共同构成独一无二的指纹。

引用此