The impact of bedform migration on benthic oxygen fluxes

S Ahmerkamp, C Winter, F Janssen… - Journal of …, 2015 - Wiley Online Library
Permeable sediments are found wide spread in river beds and on continental shelves. The
transport of these sediments is forced by bottom water currents and leads to the formation of …

Hyperspectral imaging of the microscale distribution and dynamics of microphytobenthos in intertidal sediments

A Chennu, P Färber, N Volkenborn… - Limnology and …, 2013 - Wiley Online Library
We describe a novel, field‐deployable hyperspectral imaging system, called Hypersub, that
allows noninvasive in situ map** of the microphytobenthos (MPB) biomass distribution …

Numerical observations of turbulence structure modification in channel flow over 2D and 3D rough walls

M De Marchis, B Milici, E Napoli - International Journal of Heat and Fluid …, 2015 - Elsevier
The effects of wall roughness on turbulence structure modifications were explored by
numerical experiments, carried out using Large Eddy Simulation techniques. The wall …

Effects of irregular two-dimensional and three-dimensional surface roughness in turbulent channel flows

M De Marchis, E Napoli - International Journal of Heat and Fluid Flow, 2012 - Elsevier
Wall-resolved Large Eddy Simulation of fully developed turbulent channel flows over two
different rough surfaces is performed to investigate on the effects of irregular 2D and 3D …

Verification of equations for incipient motion studies for a rigid rectangular channel

CHJ Bong, TL Lau, A Ab. Ghani - Water Science and Technology, 2013 - iwaponline.com
The current study aims to verify the existing equations for incipient motion for a rigid
rectangular channel. Data from experimental work on incipient motion from a rectangular …

On the role of ripple secondary crest on nearbed hydrodynamics

C **, Z Gong, JE San Juan… - Journal of Geophysical …, 2025 - Wiley Online Library
Ripples are ubiquitous in sandy beds and their geometry plays an important role in
determining seabed roughness and intensifying near‐bed turbulence. Ripple geometry in …

A moment-based depth-averaged K-ε model for predicting the true turbulence intensity over bedforms

M Elgamal - Water, 2022 - mdpi.com
Turbulence models are critical for depth-averaged flow models in at least two ways:(i) as
closures for momentum equations and (ii) as indicators of the spatial variability in the …

Secondary flow and streamwise vortices in three-dimensional staggered wavy-wall turbulence

E Zhang, Z Wang, W Wu, X Wang, Q Liu - Flow, 2023 - cambridge.org
The present paper simplifies the naturally formed dunes (riverbeds) as large-scale three-
dimensional staggered wavy walls to investigate the features of the accompanying …

Temporal and spatial evolution of wave‐induced ripple geometry: Regular versus irregular ripples

TR Nelson, G Voulgaris - Journal of Geophysical Research …, 2014 - Wiley Online Library
Concurrent observations of inner shelf near bed hydrodynamics and acoustic imagery of the
seabed are used to relate wave‐induced ripple geometry (wavelength and orientation) to …

[HTML][HTML] Investigation of sand ripple dynamics with combined particle image and tracking velocimetry

DP Frank-Gilchrist, A Penko… - Journal of Atmospheric …, 2018 - journals.ametsoc.org
Investigation of Sand Ripple Dynamics with Combined Particle Image and Tracking
Velocimetry in: Journal of Atmospheric and Oceanic Technology Volume 35 Issue 10 (2018) …