【摘 要】
:
Based on the results of the tidal flow Reynolds stresses of the field observations,indoor experiments,and numerical models,the parabolic distribution of the tid
【机 构】
:
Key Laboratory of Virtual Geographic Environment Ministry of Education,State Key Laboratory of Hydro
【基金项目】
:
the Public Fund Project of Ministry of Water Resource of China;国家自然科学基金
论文部分内容阅读
Based on the results of the tidal flow Reynolds stresses of the field observations,indoor experiments,and numerical models,the parabolic distribution of the tidal flow Reynolds stress is proposed and its coefficients are determined theoretically in this paper.Having been well verified with the field data and experimental data,the proposed distribution of Reynolds stress is also compared with numerical model results,and a good agreement is obtained,showing that this distribution can well reflect the basic features of Reynolds stress deviating from the linear distribution that is downward when the tidal flow is of acceleration,upward when the tidal flow is of deceleration.Its dynamics cause is also discussed preliminarily and the influence of the water depth is pointed out from the definition of Reynolds stress,turbulent generation,transmission,and so on.The established expression for the vertical distribution of the tidal flow Reynolds stress is not only simple and explicit,but can also well reflect the features of the tidal flow acceleration and deceleration for further study on the velocity profile of tidal flow.
其他文献
The offshore jacket platform is a complex and time-varying nonlinear system,which can be excited of harmful vibration by external loads.It is difficult to obtai
Fabrication of Gd2O2S:Pr scintillation ceramics by pressureless reaction sintering was investigated. The 2Gd2O3.(Gd,Pr)2(SO4)3.mH2O precursor was made by hydrot
Pipes inevitably encounter high ambient pressure and bending moment during the deepwater pipe-laying process,which can lead to elliptical buckling and even dete
It is necessary to pay more attention to the durability of concrete undergoing freeze-thaw cycles and seawater attack simultaneously.Investigated are the effect
The assembly coastal hfilding technique initiated at home and abroad,is for a novel vertical standing harbor structure.Its main concept is the assembling compon
A technique for the evaluation of the hydrodynamic coefficients of ships is outlined for ship oscillating in a numerical wave tank,which is established on Compu
本文通过房屋建筑施工说明,工程项目施工过程的质量控制对确保工程质量占据了非常重要的位置.其中强化培训、优选施工人员是质量控制的基础要领,加强材料设备的监管是保证工
拉延是利用利用拉延模具将平板毛坯制成开口空心零件,拉延成形是能否生产出合格零件产品的关键,汽车钣金件的质量好坏在很大程度上受拉延模质量的控制。通过分析某型汽车覆盖
本文主要是结合了笔者多年的工作经验针对公路养护进行了系统的探究.
Corrosion and fatigue cracks are major threats to the structural integrity of aging offshore platforms.For the rational estimation of the safety levels of aging