Results 61 to 70 of about 8,838,072 (291)
An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions [PDF]
, 2013 In this thesis I study a variety of two-dimensional turbulent systems using a mixed analytical, phenomenological and numerical approach. The systems under consideration are governed by the two-dimensional Navier-Stokes (2DNS), surface quasigeostrophic
Blackbourn, Luke A. K.
core +2 more sources
Applied Sciences, 2021 The accumulation of particles in a turbulent flow of incompressible air with mono-dispersed solid particles inside a 90° pipe bend was simulated using ANSYS® Fluent (CFD), taking into account the effect of gravity, drag force and a bidirectional fluid ...
Santiago Henríquez Lira +3 more
doaj +1 more source
X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites
Advanced Functional Materials, EarlyView.We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim +21 more
wiley +1 more source
A passive Stokes flow rectifier for Newtonian fluids
Scientific Reports, 2021 Non-linear effects of the Navier–Stokes equations disappear under the Stokes regime of Newtonian fluid flows disallowing a flow rectification behavior. Here we show that passive flow rectification of Newtonian fluids is obtainable under the Stokes regime
Aryan Mehboudi, Junghoon Yeom
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Advanced Functional Materials, EarlyView.Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto +6 more
wiley +1 more source
When is a Stokes line not a Stokes line?
, 2005 During the course of a Stokes phenomenon, an asymptotic expansion can change its form as a further series, prefactored by an exponentially small term and a Stokes multiplier, appears in the representation.
Langman, Philip J.
core +1 more source
Diffusion Processes in the A-Model of Vector Admixture: Turbulent Prandtl Number
EPJ Web of Conferences, 2018 Using analytical approach of the field theoretic renormalization-group technique in two-loop approximation we model a fully developed turbulent system with vector characteristics driven by stochastic Navier-Stokes equation. The behaviour of the turbulent
Jurčišinová Eva +2 more
doaj +1 more source
Brillouin Backscattering Light Properties of Chaotic Laser Injecting Into an Optical Fiber
IEEE Photonics Journal, 2017 Laser diode-based optical chaos is attractive for the fundamental physics as well as practical tasks in such as secure communications, random number generation, and fiber sensing.
Mingjiang Zhang +4 more
doaj +1 more source
Imaging Stars by Performing Full-Stokes Optical Interferometric Polarimetry [PDF]
Journal of Astronomy and Space Sciences, 2012 Optical interferometry and polarimetry have separately provided new insights into stellar astronomy, especially in the fields of fundamental parameters and atmospheric models.
Nicholas M. Elias II +6 more
doaj +1 more source
Results in Engineering, 2022 The current study conducts a thorough assessment of the deposition of aerosol particles in turbulent flows in both converging and diverging nozzles using the Lagrangian particle tracking model and the RNG k-ε turbulence model.
Md. Shahneoug Shuvo +3 more
doaj +1 more source