摘要
基于大量的实测资料,将潮流流速垂线分布分为Ⅰ型流速分布和Ⅱ型流速分布两种类型,并采用变维分形理论探讨了Ⅱ型流速分布的规律。结果表明:①Ⅱ型流速垂线分布存在变维分形现象;②三次函数关系式是Ⅱ型流速分布的最佳拟合公式。
As a lot of the measured data had been conduct, two patterns of vertical velocity profile of tidal current were firstly found and divided, namely velocity distribution Ⅰ and velocity distribution Ⅱ. And by use of variable fractal dimension to obtain the law of velocity distribution II. The results show that： a）the velocity vertical distribution Ⅱ does express a first-order accumulated variable-dimensional fraetal phenomenon; b） through of the fractal dimension, the various formula fitting velocity distribution Ⅱ were compared, and the results showed that, in practical applications of engineering, cubic distribution formula is the best fit as the measured data have been verified.
出处
《人民黄河》
CAS
北大核心
2012年第3期13-16,共4页
Yellow River
基金
重庆市教委科技项目(KJ110409
KF111501)
关键词
分形规律
分类
流速垂线分布
潮流
fractal law
pattern
vertical velocity distribution
tidal current
