An attempt at using the entropy approach to predict the transverse distribution of boundary shear stress in open channel flow

2002 ◽  
Vol 16 (2) ◽  
pp. 127-142 ◽  
Author(s):  
M. Sterling ◽  
D. Knight
Keyword(s):  
Shear Stress ◽  
Channel Flow ◽  
Open Channel ◽  
Open Channel Flow ◽  
Transverse Distribution ◽  
Boundary Shear ◽  
Boundary Shear Stress

Boundary shear stress in open channel flow: A comparison among six methods

2008 ◽  
Vol 46 (5) ◽  
pp. 598-609 ◽  
Author(s):  
Saeed Reza Khodashenas ◽  
Kamal El Kadi Abderrezzak ◽  
André Paquier
Keyword(s):  
Shear Stress ◽  
Channel Flow ◽  
Open Channel ◽  
Open Channel Flow ◽  
Boundary Shear ◽  
Boundary Shear Stress

Boundary shear stress analysis in smooth rectangular channels

2006 ◽  
Vol 33 (3) ◽  
pp. 336-342 ◽  
Author(s):  
Galip Seckin ◽  
Neslihan Seckin ◽  
Recep Yurtal
Keyword(s):  
Shear Stress ◽  
Shear Force ◽  
Open Channel ◽  
Open Channel Flow ◽  
Shear Stresses ◽  
Boundary Shear ◽  
Rectangular Channels ◽  
Boundary Shear Stress ◽  
Bed Shear Stresses ◽  
Total Shear

This study reports on experiments concerning the boundary shear stress and boundary shear force distributions in a smooth rectangular flume. Nonlinear regression-based equations are derived from experimental analysis to give the percentage of the total shear force carried by the walls and mean wall and bed shear stresses around the wetted perimeter as functions of the ratio of channel width to channel depth.Key words: boundary shear, shear force, open channel flow.

Transverse Distribution of the Streamwise Velocity for the Open-channel Flow With Floating Vegetated Islands

2021 ◽  
Author(s):  
Xuecheng Fu ◽  
Feifei Wang ◽  
Mengyang Liu ◽  
Wenxin Huai
Keyword(s):  
Channel Flow ◽  
Open Channel ◽  
Flow Characteristics ◽  
Open Channel Flow ◽  
Streamwise Velocity ◽  
Transport Efficiency ◽  
Transverse Distribution ◽  
Floating Vegetation ◽  
Shear Turbulence ◽  
Field Disturbance

Abstract Floating vegetation islands (FVIs) have been widely utilized in various river ecological restoration projects due to their ability to purify pollutants. FVIs float at the surface of shallow pools with their roots unanchored in the sediment. Biofilm formed by roots under islands filters nutrients and particles in the water flowing through it. Flow field disturbance will occur and transverse distribution of flow velocity will change due to the existence of FVIs. Transport efficiency of suspended solids, nutrients, and pollutants will also be altered. A modified analytical model that considers effects of boundary friction, drag force of vegetation, transverse shear turbulence, and secondary flow is established to predict transverse variation of depth-averaged streamwise velocity for the open-channel flow with FVIs using Shiono and Knight method. The simulation results with suitable boundary conditions successfully predicted lateral profile of the depth-averaged streamwise velocity compared with the experimental results of symmetrical and unsymmetrical arrangements of FVIs. Hence, the presented model can provide guidance for investigating flow characteristics of rivers with FVIs.

scholarly journals Modeling effects of bank friction and woody bank vegetation on channel flow and boundary shear stress in the Rio Puerco, New Mexico

2005 ◽  
Vol 110 (F4) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. R. Griffin ◽  
J. W. Kean ◽  
K. R. Vincent ◽  
J. D. Smith ◽  
J. M. Friedman
Keyword(s):  
Shear Stress ◽  
New Mexico ◽  
Channel Flow ◽  
Boundary Shear ◽  
Boundary Shear Stress
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