Academic literature on the topic 'Micro-inertia Driven Flow Rule'

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Journal articles on the topic "Micro-inertia Driven Flow Rule"

1

Adamu, G. T., A. M. Kwami, Mohammed Abdulhameed, and D. G. Yakubu. "Effects of Retardation Time on Non-Newtonian Electro-Osmotic Flow in a Micro-Channel." Diffusion Foundations 26 (March 2020): 39–52. http://dx.doi.org/10.4028/www.scientific.net/df.26.39.

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In this paper, we have studied the effects of retardation time of non-Newtonian Oldroyd-B type fluid driven by Helmholtz-Smoluchowski velocity in a micro-channel. The potential electric field is applied along the length of the micro-channel describing by the Poisson–Boltzmann equation. The governing model equation was solved analytically using the classical method of partial differential equations. Analytical solution was simulated with the help of MATHEMATICA software and the graphical results for various physical flow parameters were analyzed. Results shows that for larger values of retardat
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Vuckovac, Maja, Matilda Backholm, Jaakko V. I. Timonen, and Robin H. A. Ras. "Viscosity-enhanced droplet motion in sealed superhydrophobic capillaries." Science Advances 6, no. 42 (2020): eaba5197. http://dx.doi.org/10.1126/sciadv.aba5197.

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It is well known that an increased viscosity slows down fluid dynamics. Here we show that this intuitive rule is not general and can fail for liquids flowing in confined liquid-repellent systems. A gravity-driven, highly viscous glycerol droplet inside a sealed superhydrophobic capillary is moving more than 10 times faster than a water droplet with three-orders-of-magnitude lower viscosity. Using tracer particles, we show that the low-viscosity droplets are rapidly rotating internally, with flow velocities greatly exceeding the center-of-mass velocity. This is in stark contrast to the faster m
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Rahaman, Md Masiur, Pranesh Roy, Debasish Roy, and J. N. Reddy. "A peridynamic model for plasticity: Micro-inertia based flow rule, entropy equivalence and localization residuals." Computer Methods in Applied Mechanics and Engineering 327 (December 2017): 369–91. http://dx.doi.org/10.1016/j.cma.2017.07.034.

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Tai, Jiayan, and Yee Cheong Lam. "Elastic Turbulence of Aqueous Polymer Solution in Multi-Stream Micro-Channel Flow." Micromachines 10, no. 2 (2019): 110. http://dx.doi.org/10.3390/mi10020110.

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Viscous liquid flow in micro-channels is typically laminar because of the low Reynolds number constraint. However, by introducing elasticity into the fluids, the flow behavior could change drastically to become turbulent; this elasticity can be realized by dissolving small quantities of polymer molecules into an aqueous solvent. Our recent investigation has directly visualized the extension and relaxation of these polymer molecules in an aqueous solution. This elastic-driven phenomenon is known as ‘elastic turbulence’. Hitherto, existing studies on elastic flow instability are mostly limited t
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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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Manjunatha, S., B. Ammani Kuttan, G. K. Ramesh, B. J. Gireesha, and Emad H. Aly. "3D flow and heat transfer of micropolar fluid suspended with mixture of nanoparticles (Ag-CuO/H2O) driven by an exponentially stretching surface." Multidiscipline Modeling in Materials and Structures 16, no. 6 (2020): 1691–707. http://dx.doi.org/10.1108/mmms-12-2019-0226.

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PurposeThe purpose of this paper is to discuss the 3D micropolar hybrid (Ag-CuO/H2O) nanofluid past rapid moving surface, where porous medium has been considered.Design/methodology/approachThe model of problem was represented by highly partial differential equations which were deduced by using suitable approximations (boundary layer). Then, the governing model was converted into five combined ordinary differential equations applying proper similarity transformations. Therefore, the eminent iterative Runge–Kutta–Fehlberg method (RKF45) has been applied to solve the resulting equations.FindingsH
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Farzin, Mahmoud, Reza Jafari Nedoushan, and Mohammad Mashayekhi. "Simulation of Hot Sheet Metal Forming Processes Based on a Micro-Structural Constitutive Model." Key Engineering Materials 473 (March 2011): 556–63. http://dx.doi.org/10.4028/www.scientific.net/kem.473.556.

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A constitutive model is proposed for simulations of hot forming processes. Dominant mechanisms in hot forming including inter-granular deformation, grain boundary sliding and grain boundary diffusion are considered in the constitutive model. A Taylor type polycrystalline model is used to predict inter-granular deformation. Previous works on grain boundary sliding and grain boundary diffusion are extended to drive three dimensional macro stress-strain rate relationships for each mechanism. In these relationships, the effect of grain size is also taken into account. It is shown that for grain bo
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Font-Muñoz, Joan S., Antoni Jordi, Idan Tuval, Jorge Arrieta, Sílvia Anglès, and Gotzon Basterretxea. "Advection by ocean currents modifies phytoplankton size structure." Journal of The Royal Society Interface 14, no. 130 (2017): 20170046. http://dx.doi.org/10.1098/rsif.2017.0046.

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Advection by ocean currents modifies phytoplankton size structure at small scales (1–10 cm) by aggregating cells in different regions of the flow depending on their size. This effect is caused by the inertia of the cells relative to the displaced fluid. It is considered that, at larger scales (greater than or equal to 1 km), biological processes regulate the heterogeneity in size structure. Here, we provide observational evidence of heterogeneity in phytoplankton size structure driven by ocean currents at relatively large scales (1–10 km). Our results reveal changes in the phytoplankton size d
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Radu (Frenț), Corina, Maria Magdalena Roșu, Lucian Matei, Liviu Marian Ungureanu, and Mihaiela Iliescu. "Concept, Design, Initial Tests and Prototype of Customized Upper Limb Prosthesis." Applied Sciences 11, no. 7 (2021): 3077. http://dx.doi.org/10.3390/app11073077.

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This paper presents aspects of the concept and design of prostheses for the upper limb. The objective of this research is that of prototyping a customized prosthesis, with EMG signals that initiate the motion. The prosthesis’ fingers’ motions (as well as that of its hand and forearm parts) are driven by micro-motors, and assisted by the individualized command and control system. The software and hardware tandem concept of this mechatronic system enables complex motion (in the horizontal and vertical plane) with accurate trajectory and different set rules (gripping pressure, object temperature,
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Wang, Chenglei, Simon Gsell, Umberto D'Ortona, and Julien Favier. "Generalized-Newtonian fluid transport by an instability-driven filament." Journal of Fluid Mechanics 965 (June 15, 2023). http://dx.doi.org/10.1017/jfm.2023.381.

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Cilia are micro-scale hair-like organelles. They can exhibit self-sustained oscillations which play crucial roles in flow transport or locomotion. Recent studies have shown that these oscillations can spontaneously emerge from dynamic instability triggered by internal stresses via a Hopf bifurcation. However, the flow transport induced by an instability-driven cilium still remains unclear, especially when the fluid is non-Newtonian. This study aims at bridging these gaps. Specifically, the cilium is modelled as an elastic filament, and its internal actuation is represented by a constant follow
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