منابع مشابه
Shear Stress in Smooth Rectangular Open-Channel Flows
The average bed and sidewall shear stresses in smooth rectangular open-channel flows are determined after solving the continuity and momentum equations. The analysis shows that the shear stresses are function of three components: (1) gravitational; (2) secondary flows; and (3) interfacial shear stress. An analytical solution in terms of series expansion is obtained for the case of constant eddy...
متن کاملBoundary Shear Stress in a Trapezoidal Channel
This paper focuses on a hydraulic radius separation approach used to calculate the boundary shear stress in terms of bed and wall shear stress proposed in a trapezoidal channel. The average bed and sidewall shear stress in smooth trapezoidal open channels are derived after using Guo & Julien (2005) early equations taking a part of an investigation to cover both rectangular and trapezoidal chann...
متن کاملComparisons of Sidewall Correction of Bed Shear Stress in Open-channel Flows
When investigating sediment transport in laboratory open-channel flows, it is often necessary to remove sidewall effects for computing effective bed shear stress. Previous sidewall correction methods include some assumptions that have not been completely verified, and therefore different values of the bed shear stress may be obtained, depending on the approach used in making sidewall correction...
متن کاملBoundary Shear Stress in Rectangular Compound Channels
Experimental results are presented concerning the boundary shear stress distribution in a rectangular compound section channel comprising rectangular main channel and two symmetrically disposed floodplains. Different dimensionless ratios of shear stress distributions are obtained and related to relevant parameters. The floodplains due to the momentum transfer between the deep section and floodp...
متن کاملPredicting Shear Stress Distribution in Rectangular Channels Using Entropy Concept
This study makes use of the Tsallis entropy to predict the shear stress distribution. Given a definition of the Tsallis entropy, it is maximized by using the probability density function, which then is used to attain a novel shear stress equation. This is then employed for calculating the shear stress distribution in rectangular channels in different aspect ratios and finally, for viability, th...
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ژورنال
عنوان ژورنال: Journal of Hydraulic Engineering
سال: 2005
ISSN: 0733-9429,1943-7900
DOI: 10.1061/(asce)0733-9429(2005)131:1(30)