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用子波变换检测壁湍流信号局部标度指数
姜楠; 舒玮; 王振东
Source Publication实验力学
1997
Volume12Issue:3Pages:12-16
ISSN1001-4888
Abstract本文用子波变换检测了刻画壁湍流脉动信号自相似性的局部标度指数,研究了不同尺度的湍流结构的自相似性,发现在湍流边界层猝发过程中,喷射和扫掠发生时刻小尺度脉动速度信号的局部标度指数为负值,说明在大尺度猝发事件发生的时刻小尺度结构具有奇异的自相似性,在猝发过程中其作用不仅仅是对湍能的耗散.
Keyword子波变换 猝发事件 喷射 扫掠 局部标度指数
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/35528
Collection力学所知识产出(1956-2008)
Corresponding Author姜楠
Recommended Citation
GB/T 7714
姜楠,舒玮,王振东. 用子波变换检测壁湍流信号局部标度指数[J]. 实验力学,1997,12,3,:12-16.
APA 姜楠,舒玮,&王振东.(1997).用子波变换检测壁湍流信号局部标度指数.实验力学,12(3),12-16.
MLA 姜楠,et al."用子波变换检测壁湍流信号局部标度指数".实验力学 12.3(1997):12-16.
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