Articles with "near free" as a keyword



Kinetic description of flow detachment at a smooth micro-step: the near-free-molecular regime

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Published in 2024 at "Theoretical and Computational Fluid Dynamics"

DOI: 10.1007/s00162-024-00728-8

Abstract: We study the pressure-driven steady gas flow, imposed by temperature or density gradients, over a backward-facing step in a two-dimensional microchannel. Focusing on the near-free-molecular regime of high Knudsen (Kn\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy}… read more here.

Keywords: document; free molecular; near free; step ... See more keywords

Near-free-standing epitaxial graphene on rough SiC substrate by flash annealing at high temperature

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Published in 2017 at "Carbon"

DOI: 10.1016/j.carbon.2017.05.046

Abstract: In this paper, flash annealing at high temperature (HT) is adopted to fabricate graphene through thermal decomposition of SiC. Interestingly, surface roughening will lead to near-free-standing epitaxial graphene (EG) decouple from SiC substrate. The process… read more here.

Keywords: free standing; near free; graphene; flash annealing ... See more keywords

Airborne flow dynamics near free-falling bulk materials: CFD analysis from analytical pressure field

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Published in 2021 at "Powder Technology"

DOI: 10.1016/j.powtec.2021.02.050

Abstract: Abstract The dust generated and spread by free fall of bulk materials is analyzed through CFD simulations that allow visualization of the velocity vector field and the air masses close to the main material stream… read more here.

Keywords: field; bulk materials; pressure field; near free ... See more keywords
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Prolonged simulation of near-free surface underwater explosion based on Eulerian finite element method

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Published in 2020 at "Theoretical and Applied Mechanics Letters"

DOI: 10.1016/j.taml.2020.01.003

Abstract: Abstract In the area of naval architecture and ocean engineering, the research about the underwater explosion problem is of great significance. To achieve prolonged simulation of near-free surface underwater explosion, the underwater explosion transient numerical… read more here.

Keywords: simulation near; near free; prolonged simulation; underwater explosion ... See more keywords

Boron-Doped Carbon Material Modulated Highly Reactive Near-Free Fe(III) for Accelerated and Long-Lasting Fenton Oxidation with Hydrogen Peroxide as a Green Electron Donor.

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Published in 2025 at "Environmental science & technology"

DOI: 10.1021/acs.est.5c10132

Abstract: Heteroatom doping has been applied as an excellent method for mediating the catalytic reactivity of carbon materials. To overcome the inherent defect of slow Fe(III) reduction in Fenton chemistry, this work finds that boron-doped carbon… read more here.

Keywords: near free; fenton; free iii; boron doped ... See more keywords

Supercavitating flow around high-speed underwater projectile near free surface induced by air entrainment

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Published in 2018 at "AIP Advances"

DOI: 10.1063/1.5017182

Abstract: Cavitating flow near free surface is a complicated issue and may provide new inspiration on high-speed surface cruising. This study observes stable supercavitating flow as a new phenomenon in a launch experiment of axisymmetric projectile… read more here.

Keywords: near free; surface; free surface; flow ... See more keywords

Suppression of vortex-induced vibration of a circular cylinder using a pair of jets near the free surface

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0246867

Abstract: In practical engineering applications, Vortex-Induced Vibration (VIV) poses significant hazards to objects. Objects located near the free surface, such as those on a water platform, will also be affected by VIV. Therefore, the suppression of… read more here.

Keywords: free surface; suppression; near free; vibration ... See more keywords

Hydrodynamic performance and wake study of an UUV sailing near the free surface

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Published in 2024 at "Frontiers in Marine Science"

DOI: 10.3389/fmars.2024.1416166

Abstract: In this study, the SUBOFF UUV is numerically modelled in order to investigate the hydrodynamic features and effects of submerged navigation near the free surface. At various speeds and depths below the surface, the hydrodynamic… read more here.

Keywords: free surface; navigation; wave; near free ... See more keywords