Vibration-based flow energy harvesting enables robust, in-situ extraction for low-power applications, such as distributed sensor networks. Fluid-structure instabilities dictate a harvester's viability since the structural response to determines its power output. Previous work on flextensional-based harvester demonstrated that an elastic member within converging-diverging channel is susceptible ...

0017-9310/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.ijheatmasstransfer.2011.04.028 ⇑ Corresponding author. E-mail addresses: [email protected], maa59@ URL: http://www.mohsenakbari.com (M. Akbari). This paper outlines a novel approximate model for determining the pressure drop of laminar, singlephase flow in slowly-varying microchannels of arbitrary cross-section based on the solu...

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Microfluidic alignment has attracted attention as a possible tool for the orientation of micronsize rods suspended in a solvent and the deposition of these rods in ordered arrays on solid surfaces. In the present work the following situations are realized experimentally: i a flow through an abruptly converging or diverging joint between wide and narrow straight channels which entrains and align...

This article is dedicated to analyzing the heat transfer in the flow of water-based nanofluids in a channel with non-parallel stretchable walls. The magnetohydrodynamic (MHD) nature of the flow is considered. Equations governing the flow are transformed into a system of nonlinear ordinary differential equations. The said system is solved by employing two different techniques, the variational it...

We demonstrate that a computational fluid dynamics (CFD) model enhanced with molecular-level information can accurately predict unsteady nano-scale flows in non-trivial geometries, while being efficient enough to be used for design optimisation. We first consider a converging–diverging nano-scale channel driven by a time-varying body force. The time-dependent mass flow rate predicted by our enh...

Divergence of the Shaker superfamily of voltage-gated (Kv) ion channels early in metazoan evolution created numerous electrical phenotypes that were presumably selected to produce a wide range of excitability characteristics in neurons, myocytes, and other cells. A comparative approach that emphasizes this early radiation provides a comprehensive sampling of sequence space that is necessary to ...

Many traffic simulation software tools, such as Vissim, SimTraffic, Corsim, Synchro, and Dynasmart have emerged over the last decade and are widely used for analyzing capacity, delay, and level of service at intersections, ramps, and along arterial/freeway segments. While these tools have shown great promise, they are expensive and the data collection and input set-up is time consuming and reso...

To simulate the effect of free st ream turbulence on turbulent spot formation, experiments were conducted on the interaction of localized three-dimensional disturbances with the harmonic waves in a laminar boundary layer on a flat plate. Experiments conducted in three-dimensional diverging flow (but zero pressure gradient) show, while individually the disturbances decay downstream, their intera...

The emergence of a diverging length scale in many-body systems at a quantum phase transition implies that total entanglement has to reach its maximum there. In order to fully characterize this, one has to consider multipartite entanglement as, for instance, bipartite entanglement between individual particles fails to signal this effect. However, quantification of multipartite entanglement is ve...