Analytical solution to the 3D tide-induced Lagrangian residual current in a narrow bay with vertically varying eddy viscosity coefficient

2020 ◽  
Vol 70 (6) ◽  
pp. 759-770
Author(s):  
Yang Chen ◽  
Yanxing Cui ◽  
Xiaoxuan Sheng ◽  
Wensheng Jiang ◽  
Shizuo Feng
Keyword(s):  
Analytical Solution ◽  
Eddy Viscosity ◽  
Viscosity Coefficient ◽  
Residual Current ◽  
Narrow Bay ◽  
Lagrangian Residual Current ◽  
Eddy Viscosity Coefficient

scholarly journals VERTICAL VARIATION OP UNDERTOW IN THE SURF ZONE

1988 ◽  
Vol 1 (21) ◽  
pp. 33 ◽  
Author(s):  
Akio Okayasu ◽  
Tomoya Shibayama ◽  
Kiyoshi Horikawa
Keyword(s):  
Laboratory Experiments ◽  
Eddy Viscosity ◽  
Surf Zone ◽  
Viscosity Coefficient ◽  
Laser Doppler Velocimeter ◽  
Vertical Variation ◽  
Two Component ◽  
The Mean ◽  
Eddy Viscosity Coefficient ◽  
The Vertical Distribution

In order to establish a model of the vertical distribution of the undertow, laboratory experiments were performed on uniform slopes of 1/20 and 1/30. The turbulent velocity in the surf zone including the area close to the bottom was measured by using a two-component laser doppler velocimeter. The distributions of the mean Reynolds stress and the mean eddy viscosity coefficient were calculated. Based on the experimental results, a model to predict the vertical profile of the undertow was presented.

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