Results 41 to 50 of about 2,268 (172)

Sediment patterns near a model patch of reedy emergent vegetation [PDF]

open access: yes, 2012
This laboratory study describes the sediment patterns formed in a sand bed around circular patches of rigid vertical cylinders, representing a patch of reedy emergent vegetation. The patch diameter was much smaller than the channel width.
Follett, Elizabeth M., Nepf, Heidi
core   +1 more source

Three-dimensional flows around low-aspect-ratio flat-plate wings at low Reynolds numbers [PDF]

open access: yes, 2009
Three-dimensional flows over impulsively translated low-aspect-ratio flat plates are investigated for Reynolds numbers of 300 and 500, with a focus on the unsteady vortex dynamics at post-stall angles of attack. Numerical simulations, validated by an oil
Colonius, Tim, Kunihiko, Taira
core   +1 more source

Mechanism of heat transportation in the intermediate wake of a heated cylinder

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The paper clarifies the effects of buoyancy on the mechanism of heat transfer in the wake of heated cylinder for X/D=5-40. Measurements are made by a thermo-anemometer.
Hideaki WATANABE   +2 more
doaj   +1 more source

Dye visualization of the wake of a near-wall particle in response to a periodic oscillation

open access: yesMeasurement: Sensors, 2021
In turbulent dispersed multiphase flows, the interaction between the particle wake and the ambient turbulent fluctuation can be crucial for the change of the multiphase system.
Xing Li, Haibin Zhang, Bofeng Bai
doaj   +1 more source

Transition in vortex wakes of flow around an elliptic cylinder

open access: yesArchives of Mechanics
Transition in the wake flow around an elliptic cylinder was numerically investigated at Reynolds numbers (Re) ranging from 3 to 200. The cylinder axis ratio (AR) varies from 0.125 to 8, while its angle of attack (AoA) was examined at 30°, 60°, and 90 ...
V.L. Nguyen, V.D. Duong, L.H. Duong
doaj   +1 more source

System Identification of Robotic Fish Swimming Reveals Roles of Reactive and Resistive Fluid Force in Two Distinct Swimming Gaits

open access: yesAdvanced Intelligent Systems, EarlyView.
System identification and particle image velocimetry reveal how a modular robotic fish changes thrust physics across gaits. A traveling‐wave, fish‐like motion draws thrust from resistive drag, while a resonant standing‐wave motion is driven by reactive pressure.
Donghao Li   +4 more
wiley   +1 more source

Design of mine-used wind speed sensor based on DDS technology

open access: yesGong-kuang zidonghua, 2016
In view of problem that performance of mine-used wind speed sensor is easy to fall because of poor working conditions, a kind of mine-used wind speed sensor based on DDS technology was designed.
MIAO Kebin
doaj   +1 more source

Eco‐Evo‐Hydraulics: Integrating Fish Evolution Into Ecohydraulics for Conservation

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract Riverine fish conservation in eco‐hydraulics is often based on restoring or regulating river habitat to a semi‐natural state. For example, ecohydraulic projects support fish populations by increasing river connectivity through fishways, and by maintaining or restoring natural flow variance to enhance habitat quality and availability.
Xiatong Cai   +10 more
wiley   +1 more source

Bio‐to‐Robot Transfer of Fish Sensorimotor Dynamics via Interpretable Model

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This study demonstrates how a biologically interpretable model trained on real‐fish muscle activity can accurately predict the motion of a robotic fish. By linking real‐fish sensorimotor dynamics with robotic fish, the work offers a transparent, data‐efficient framework for transferring biological intelligence to bioinspired robotic systems.
Waqar Hussain Afridi   +6 more
wiley   +1 more source

Analysis of the Influence of the Vortex Shedder Shape on the Metrological Properties of the Vortex Flow Meter

open access: yesSensors, 2021
Vortex flow meters are used to measure the flow of gases and liquids. The flow meters of this type measure the frequency of vortices that arise behind an obstacle set in the path of the flowing fluid.
Mariusz R. Rzasa, Beata Czapla-Nielacna
doaj   +1 more source

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