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Microsystems are made up of components < 100 μm in size. At this size range, the flow of substances typically experiences a laminar behavior with the Stokes flow condition (Re < 1). To the mixing operation, diffusion dominates the mixing, which further leads to the problem of the increased length of microchannel (mixing length for short) and increased length of time. Development of a new principle...
This research work deals with the numerical modeling and analysis of macro- to microscaled milling of a strain rate-sensitive alloy AA2024T351. The milling computations of a semicircular slot are performed in Abaqus/Explicit by employing the Johnson–Cook thermo-elasto viscoplastic material damage model. The Coulomb friction model is applied at the contact interfaces of work piece and cutting tool...
In this paper, the flow of power-law fluid over a circular cylinder near a moving wall is simulated numerically using a finite volume method for different Reynolds numbers (Re = 1, 10, 40), gap ratios (G/D = 0.2–1.0), and power-law indices (n = 0.5–1.5). The effects of fluid inertia, wall proximity, and rheological property on the drag and lift coefficient, gap flow characteristics, and recirculation...
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