Three-dimensional hole size (3DHS) approach for water flow turbulence analysis over emerging sand bars: Flume-scale experiments

MA Khan, N Sharma, GFC Lama, M Hasan, R Garg… - Water, 2022 - mdpi.com
The many hydrodynamic implications associated with the geomorphological evolution of
braided rivers are still not profoundly examined in both experimental and numerical …

Flow development in rough-bed open channels: mean velocities, turbulence statistics, velocity spectra, and secondary currents

A Zampiron, SM Cameron, MT Stewart… - Journal of Hydraulic …, 2023 - Taylor & Francis
The channel length required for the development of the flow, from the channel entrance to
full establishment, is often a prerequisite when designing hydraulic structures or planning …

Wake characteristics of wall-mounted solid and foam-covered circular cylinders

S Das, S Abishek, R Balachandar, RM Barron - Physics of Fluids, 2023 - pubs.aip.org
The wake characteristics of wall-mounted finite submerged solid and foam-covered circular
cylinders (height/diameter= 0.9) are explored using large-eddy simulation for a Reynolds …

Effects of Orifice Height and Gas Flow Rate on Underwater Bubbles Dynamics in Crossflow

H Wang, Y Xu, L Si-ying - International Journal of Multiphase Flow, 2025 - Elsevier
This study employs high-speed photography and image processing to investigate the effects
of orifice heights (H n/δ= 0, 0.5, and 2, where δ represents the boundary layer thickness) and …

Effect of free surface perturbation on fully developed smooth open channel flow

S Das, R Balachandar, RM Barron - Journal of Hydraulic Research, 2022 - Taylor & Francis
Light floater boards are commonly used in open channel flow studies to reduce free surface
disturbances. However, the shear layer generated from the surface of the floaters, which has …

New Method to Calculate Friction Velocity in Smooth Channel Flows Using Direct Numerical Simulation Data

H Mishra, SK Venayagamoorthy - Journal of Hydraulic Engineering, 2024 - ascelibrary.org
In this paper, we leverage the direct numerical simulation (DNS) data for closed-channel
flow for a range of friction Reynolds number (R e τ∼ 180–5,000) to develop a new one-point …

On the disruption of the horseshoe vortex in flow past bed-mounted cylinders

TK Pradhan, A Thakurta, V Roussinova… - Canadian Journal of …, 2024 - cdnsciencepub.com
The present study investigates the disruption of the horseshoe vortex (HSV) formed around
a bed-mounted circular cylinder using helical strakes. Three cylinders were studied: one …

PIV Measurements of Open-Channel Turbulent Flow under Unconstrained Conditions

JK Arthur - Fluids, 2023 - mdpi.com
Many open-channel turbulent flow studies have been focused on highly constrained
conditions. Thus, it is rather conventional to note such flows as being fully developed, fully …

Wake characteristics of shallow flow past wall-mounted circular cylinder with and without helical strakes

A Thakurta - 2024 - search.proquest.com
The wake dynamics of bed-mounted circular cylinders with and without helical strakes in a
shallow flow are investigated experimentally using particle image velocimetry system. The …

Spatial variation of mean flow and turbulence characteristics within channel contraction–an experimental approach

SK Singh, V Das, S Chaudhuri… - ISH Journal of Hydraulic …, 2023 - Taylor & Francis
The influence of three different channel contractions on the mean flow and turbulent
characteristics has been measured experimentally in a recirculating flume. The velocity …