Results 71 to 80 of about 18,864 (213)
Multiscale Coupling of Boundary Layer Flow Turbulence and Sand Streamer Dynamics
Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.Abstract Wind‐driven sand transport at the Earth's surface exhibits pronounced spatiotemporal variability, forming elongated sand streamers that critically control sand flux. Despite their importance, the detailed fundamental mechanisms governing streamer formation remain elusive.
Mengdi Yan +3 more
wiley +1 more source
A PIV-based method to measure spatial gradients in bedload transport over a dune
E3S Web of Conferences, 2018 Traditional sediment transport equations calculate sediment flux from bed shear stress and the equations predict that transport increases nonlinearly with an increase in flow velocity.
Terwisscha van Scheltinga Renske C. +2 more
doaj +1 more source
A novel permanent gauge-cam station for surface-flow observations on the Tiber River [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2016 Flow monitoring of riverine environments is crucial for hydrology and hydraulic engineering practice. Besides few experimental implementations, flow gauging relies on local water level and surface-flow velocity measurements through ultrasonic meters and ...
F. Tauro +7 more
doaj +1 more source
Performance prediction of point-based three-dimensional volumetric measurement systems [PDF]
, 2008 Point-based three-dimensional volumetric measurement systems are defined as multi-view vision systems which reconstruct a three-dimensional scene by first identifying key points on the views and then performing the reconstruction.
Gharib, M., Graff, E. C.
core +1 more source
Journal of Field Robotics, Volume 43, Issue 3, Page 1884-1904, May 2026.ABSTRACT Safe and reliable mobility over different kinds of ground is important for planetary rovers on space missions. Since terrain changes might affect the mobility of the rover, energy consumption, and safety, detecting the type of ground in real‐time is vital.
Md Masrul Khan +7 more
wiley +1 more source
Optically-Trapped Particle Tracking Velocimetry
In this paper, we propose a microflow velocimetry based on particle tracking with the aid of the optical trapping of tracers, namely, optically-trapped particle tracking velocimetry (ot-PTV). The ot-PTV has two phases: a trap phase, in which individual tracers are trapped by an optical force and held at a measurement position; a release phase, in which
Tsuji, Tetsuro +2 more
openaire +2 more sources
Journal of Fluid Science and Technology, 2009 A non-intrusive and continuous separation technique for suspended particles in a microchannel has been developed by utilizing acoustic radiation force with two ultrasonic transducers.
Mitsuhisa ICHIYANAGI +3 more
doaj +1 more source
Coarse-grained strain dynamics and backwards/forwards dispersion [PDF]
, 2006 A Particle Tracking Velocimetry experiment has been performed in a turbulent flow at intermediate Reynolds number. We present experimentally obtained stretching rates for particle pairs in the inertial range.
Berg, J., Luthi, B., Mann, J., Ott, S.
core +1 more source
Impacts of Blade Camber on Cross‐Flow Turbine Performance and Loading
Wind Energy, Volume 29, Issue 5, May 2026.ABSTRACT Cross‐flow turbines show promise for renewable energy generation from wind and tidal sources. The rotating reference frame of cross‐flow turbine blades results in virtual camber and incidence due to streamline curvature, altering the lift, drag, and pitching moment of the blades. Adding geometric camber is therefore likely to alter performance
Ari Athair +3 more
wiley +1 more source
Journal of Applied Fluid Mechanics, 2015 The performance of a fish guiding device located just upstream a hydropower plant is scrutinized. The device is designed to redirect surface orientated down-stream migrating fish (smolts) away from the turbines towards a spillway that act as a relatively
Staffan Lundstrom +4 more
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