摘要
根据Taylor的扩散理论,按Hay和Pasquill的拉格朗日流与欧拉流自相关函数相似的假定,用实测的长序列欧拉流资料,计算了不同时间尺度的水平扩散系数。
In order to study the diffusion processes of polluting substance along littoral areas,and to predict the diffusion of polluting substance in coastal regions,it is necessary to determine the diffusion coefficients in field.Based on Taylor's diffusion theory and the assumption proposed by Hay and Pasquill that the auto-correlation function of Lagrangian currents is similar to that of Eulerian currents,the horizontal diffusion coefficients with different time scales are calculated in this paper by using long-series Lagrangian current data.
关键词
海域
紊流
扩散系数
潮汐
Auto-correlation function
coefficient of diffusion
turbulence
tidal stream
Lagrangian current
Eulerian current
