Effects of a fully submerged boulder within a boulder array on the mean and turbulent flow fields: Implications to bedload transport

AN Papanicolaou, CM Kramer, AG Tsakiris, T Stoesser… - Acta Geophysica, 2012 - Springer
The objective of this coupled experimental and numerical study is to provide insight into the
mean and turbulent flow fields within an array of fully submerged, isolated, immobile …

Influence of bank vegetation and gravel bed on velocity and Reynolds stress distributions

H Afzalimehr, DEY Subhasish - International Journal of Sediment …, 2009 - Elsevier
This paper presents the results of a laboratory flume experimental study on the interaction of
bank vegetation and gravel bed on the flow velocity (primarily on the location of the …

Two-dimensional velocity distribution in open channels using the Tsallis entropy

H Cui, VP Singh - Journal of Hydrologic Engineering, 2013 - ascelibrary.org
Assuming time-averaged velocity as a random variable, a two-dimensional (2D) velocity
distribution in open channels was derived by maximizing the Tsallis entropy, subject to mass …

ADV measurements of velocity distributions in a gravel‐bed flume

V Ferro - Earth Surface Processes and Landforms: The Journal …, 2003 - Wiley Online Library
Velocity measurements carried out by an acoustic doppler velocimeter (ADV) in a
rectangular laboratory flume having a gravel bed are presented. The velocity profiles are …

Determination of bed shear stress in gravel-bed rivers using boundary-layer parameters

H Afzalimehr, CD Rennie - Hydrological sciences journal, 2009 - Taylor & Francis
The behaviour of velocity profiles and shear velocity for non-uniform flow in gravel-bed rivers
is studied, with the objectives:(a) to test a new method of shear velocity estimation in gravel …

Propeller-induced jet impact on vegetated flow fields: Complex coupled effect towards the velocity profile

JH Pu - Applied Sciences, 2023 - mdpi.com
The failure of swirling ship propellers in marine environments can lead to huge repair costs.
One of the main causes of such failure is when propellers tangle with vegetation, especially …

Effect of vegetation patches on flow structures and the estimation of friction factor

H Afzalimehr, P Riazi, M Jahadi… - ISH Journal of Hydraulic …, 2021 - Taylor & Francis
In rivers, irrigation canals, and drainage channels vegetation patches often appear over the
bed. Flow over vegetation patches is in non-developed region which significantly influences …

Impacts of vegetation over bedforms on flow characteristics in gravel-bed rivers

H Afzalimehr, MR Maddahi, J Sui… - Journal of …, 2019 - Springer
In the present study, among six gravel-bed river reaches, two natural gravel-bed river
reaches with approximately similar bedforms and flow conditions have been found, one river …

Determinants of modelling choices for 1-D free-surface flow and morphodynamics in hydrology and hydraulics: a review

B Cheviron, R Moussa - Hydrology and Earth System Sciences, 2016 - hess.copernicus.org
This review paper investigates the determinants of modelling choices, for numerous
applications of 1-D free-surface flow and morphodynamic equations in hydrology and …

Flume Experiments for Flow around Debris Accumulation at a Bridge

J Jeon, Y Kim, D Kim, SK Kang - KSCE Journal of Civil Engineering, 2024 - Springer
We conducted flume experiments to study the flow behavior around a debris accumulation at
a two-pier bridge. An Acoustic Doppler Velocimetry was utilized to measure velocity in cases …