Vertical Distribution of Turbulence Shear Stress During Tidal Period

Abstract:

Turbulence shear stress is an important dynamic characteristic of flow in tidal channel. In the paper, the new vertical distribution of the tidal turbulence shear stress, which can reflect the development of the stress profile over the tidal period, is proposed. The comparison between computed result and the data from field and experiment measurements indicates that the proposed vertical distribution which agrees well with the measurements can well depict the upward concave distribution in phase of accelerating process and upward convex in phase of decelerating process. Through analyzing the amplitude and phase variation along the depth on different conditions, it is found that it is the nondimensional parameter , namely the ratio of tidal period, turbulence intensity and water depth that determines the form of turbulence shear stress distribution during tidal period.

• Periodical: Applied Mechanics and Materials (Volumes 212-213)
• Pages: 1155-1160
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.212-213.1155
• Online since: October 2012
• Authors: Zhuo Zhang, Zhi Yao Song
• Keywords: Tedal Deceleration, Tidal Acceleration, Tidal Flow, Turbulence Shear Stress, Vertical Distribution

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