Results 51 to 60 of about 8,639 (236)

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

open access: yesAdvanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Suitability analysis of three dimensional hydraulic factors for spawning habitat of Chinese Sturgeon (Acipenser sinensis)

open access: yesShui kexue jinzhan, 2018
This study employs a three-dimensional hydrodynamic model to analyze the spatial and temporal characteristics of stream flows at spawning sites of Chinese Sturgeon.
BAN Xuan   +4 more
doaj   +1 more source

Comparative assessment of volume‐of‐fluid (VOF) multiphase solvers for viscoplastic flow over grooved patterned surfaces

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume‐of‐fluid (VOF) solvers within the OpenFOAM framework for pressure‐driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical ...
Amir Joulaei   +2 more
wiley   +1 more source

Vortices and impurities [PDF]

open access: yesJournal of High Energy Physics, 2014
Abstract We describe the BPS dynamics of vortices in the presence of impurities. We argue that a moduli space of solitons survives the addition of both electric and magnetic impurities. However, dynamics on the moduli space is altered.
Tong, David, Wong, Kenny
openaire   +2 more sources

Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer

open access: yesEnergy Science &Engineering, EarlyView.
Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou   +5 more
wiley   +1 more source

Monolithic Framework to Simulate Fluid‐Structure Interaction Problems Using Geometric Volume‐of‐Fluid Method

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
A three‐dimensional fluid‐structure interaction (FSI) framework is developed using the geometric volume‐of‐fluid (VOF) interface capturing method and applied to assess largescale turbulent FSI interactions. The monolithic FSI framework is extensively validated, and despite the discontinuities across the interface, the FSI framework delivers stable and ...
Soham Prajapati   +2 more
wiley   +1 more source

Effect of a Boundary Layer on Cavity Flow

open access: yesMathematics, 2020
Cavity flow past an obstacle in the presence of an inflow vorticity is considered. The proposed approach to the solution of the problem is based on replacing the continuous vorticity with its discrete form in which the vorticity is concentrated along ...
Yuriy N. Savchenko   +2 more
doaj   +1 more source

The Relation Between Two Types of Frequent Wave Breaking Over Southeastern Siberia and Different Conditions of Unseasonable Midsummer Weather Over Japan

open access: yesInternational Journal of Climatology, EarlyView.
To analyze the different morphologies of Rossby wave breaking over Eastern Siberia and their relationships with the anomalous patterns of temperature and precipitation that cause unseasonable midsummer weather conditions over Japan, we performed regression analyses against the interannual variabilities of the anticyclonic and cyclonic Rossby wave ...
Kazuto Takemura
wiley   +1 more source

Vortices and Confinement

open access: yes, 2000
12 pages, LaTeX file, 2 epsf figures. Contribution to the Proceedings of the workshop ``Lattice fermions and the structure of the vacuum'', 5-9 October 1999, Dubna ...
Kovács, T. G., Tomboulis, E. T.
openaire   +2 more sources

Connections between Tomboulis vortices and projection vortices [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2002
3 pages, 2 eps figures, uses espcrc2.sty ...
Alexandru, A., Haymaker, Richard W.
openaire   +2 more sources

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