Academic literature on the topic 'Micro-scale Fluid Mechanics'

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Journal articles on the topic "Micro-scale Fluid Mechanics"

1

Song, Fuquan, Heying Ding, Lintao Huang, Yong Wang, and Yeheng Sun. "Research on non-Newtonian characteristics of crude oil flow at micro-nano scale." Physics of Fluids 35, no. 4 (2023): 042011. http://dx.doi.org/10.1063/5.0145727.

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The characteristic scale of flow in micro–nanochannels is generally in the range of 0.01 μm∼1 μm. When crude oil passes through micro-nano channels and tight reservoirs, it shows obvious nonlinear seepage characteristics, which does not conform to the continuity assumption of fluid. Therefore, a non-Newtonian model of crude oil flowing in micro-nano channels and tight reservoirs under the action of shear stress is established, and the relationship between flow rate and apparent viscosity and shear rate is analyzed. The experiment of crude oil flow in micro-nano channels and tight oil reservoir
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Luding, S. "Meso-scale transport in sticky granular fluids." Journal of Fluid Mechanics 864 (February 7, 2019): 1–4. http://dx.doi.org/10.1017/jfm.2019.34.

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Fluid mechanics and rheology involve many unsolved challenges related to the transport mechanisms of mass, momentum and energy – especially when it comes to realistic, industrially relevant materials. Very interesting are suspensions or granular fluids with solid, particulate ingredients that feature contact mechanics on the micro-scale, which affect the transport properties on the continuum- or macro-scale. Their unique ability to behave as either fluid, or solid or both, can be quantified by non-Newtonian rheological rules, and results in interesting mechanisms such as super-diffusion, shear
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3

Velho Rodrigues, Marcos F., Maciej Lisicki, and Eric Lauga. "The bank of swimming organisms at the micron scale (BOSO-Micro)." PLOS ONE 16, no. 6 (2021): e0252291. http://dx.doi.org/10.1371/journal.pone.0252291.

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Unicellular microscopic organisms living in aqueous environments outnumber all other creatures on Earth. A large proportion of them are able to self-propel in fluids with a vast diversity of swimming gaits and motility patterns. In this paper we present a biophysical survey of the available experimental data produced to date on the characteristics of motile behaviour in unicellular microswimmers. We assemble from the available literature empirical data on the motility of four broad categories of organisms: bacteria (and archaea), flagellated eukaryotes, spermatozoa and ciliates. Whenever possi
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4

dell'Isola, F., L. Rosa, and C. Woźniak. "A micro-structured continuum modelling compacting fluid-saturated grounds: the effects of pore-size scale parameter." Acta Mechanica 127, no. 1-4 (1998): 165–82. http://dx.doi.org/10.1007/bf01170371.

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5

Pence, Deborah V., Paul A. Boeschoten, and James A. Liburdy. "Simulation of Compressible Micro-Scale Jet Impingement Heat Transfer." Journal of Heat Transfer 125, no. 3 (2003): 447–53. http://dx.doi.org/10.1115/1.1571082.

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A computational study is presented of the heat transfer performance of a micro-scale, axisymmetric, confined jet impinging on a flat surface with an embedded uniform heat flux disk. The jet flow occurs at large, subsonic Mach numbers (0.2 to 0.8) and low Reynolds numbers (419 to 1782) at two impingement distances. The flow is characterized by a Knudsen number of 0.01, based on the viscous boundary layer thickness, which is large enough to warrant consideration of slip-flow boundary conditions along the impingement surface. The effects of Mach number, compressibility, and slip-flow on heat tran
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6

Squires, Todd M. "Micro-plumes for nano-velocimetry." Journal of Fluid Mechanics 832 (October 26, 2017): 1–4. http://dx.doi.org/10.1017/jfm.2017.688.

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Fluid flows through nano-scale channels depend sensitively on the physical and chemical properties of the walls that surround them. The sub-micron dimensions of such channels, however, are impossible to resolve optically, which rules out most methods for flow visualization. Classic calculations by Squire (Q. J. Mech. Appl. Maths, vol. IV, 1951, pp. 321–329) and Landau & Lifshitz (Fluid Mechanics, vol. 6, 1959, Pergamon) showed that the laminar flow driven outside a capillary, by fluid emerging from the end of the capillary, is identical to the flow driven by a point force proportional to t
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Blanchard, Danny, and Phillip M. Ligrani. "Micro-scale and millimeter-scale rotating disk couette flows, experiments and analysis." Experiments in Fluids 41, no. 6 (2006): 893–903. http://dx.doi.org/10.1007/s00348-006-0208-8.

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8

Youjun, Ji, and K. Vafai. "Analysis of pore scale fluid migration in a porous medium- application to coal rock seam." International Journal of Numerical Methods for Heat & Fluid Flow 27, no. 8 (2017): 1706–19. http://dx.doi.org/10.1108/hff-05-2016-0198.

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Purpose The purpose of this study is to digitize the porous structure and reconstruct the geometry of the rock by using the image processing software photoshop (PS) and ant colony algorithm coded with compiler Fortran PowerStation (fps) 4.0 based on the microscopic image of a typical rock mass. Design/methodology/approach The digital model of the microstructure of the porous coal rock was obtained, and imported into the numerical simulation software to build the finite element model of microstructure of the porous coal rock. Creeping flow equations were used to describe the fluid flow in the p
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9

Bultreys, T., S. Van Offenwert, W. Goethals, M. N. Boone, J. Aelterman, and V. Cnudde. "X-ray tomographic micro-particle velocimetry in porous media." Physics of Fluids 34, no. 4 (2022): 042008. http://dx.doi.org/10.1063/5.0088000.

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Fluid flow through intricate confining geometries often exhibits complex behaviors, certainly in porous materials, e.g., in groundwater flows or the operation of filtration devices and porous catalysts. However, it has remained extremely challenging to measure 3D flow fields in such micrometer-scale geometries. Here, we introduce a new 3D velocimetry approach for optically opaque porous materials, based on time-resolved x-ray micro-computed tomography (CT). We imaged the movement of x-ray tracing micro-particles in creeping flows through the pores of a sandpack and a porous filter, using labor
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10

Siginer, Dennis. "Special Section on the Fluid Mechanics and Rheology of Nonlinear Materials at the Macro, Micro, and Nano Scale." Journal of Fluids Engineering 128, no. 1 (2006): 1–5. http://dx.doi.org/10.1115/1.2163070.

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