Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Micropillar array"”.
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Bubble dynamics on structured surface in microchannel
… unclear. In this thesis, bubble dynamics on micropillar array surfaces were studied. A surface energy based model is presented to predict the bubble morphology on pillar array surfaces. The results showed that bubbles tend to stay on top surfaces of pillars at solid fractions greater than …
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Enhanced flow boiling heat transfer in microchannels with structured surfaces at varied mass flow rates
… heat transfer in microchannels with surface micropillar arrays. The motivation for this investigation was to determine the general trends of the optimal micropillar array geometry in terms of its heat transfer capabilities. The experiment was conducted with three microchannels: a flat surface …
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Modeling Droplet Impingement Dynamics on Micropillar-Arrayed Viscoelastic Substrates Through Microgeometry-Free and Multiscale Methods
The droplet impact dynamics on micropillar-arrayed viscoelastic substrates has been thoroughly investigated by two distinct modeling methods, i.e., microgeometry-free and multiscale modeling methods. The viscoelasticity of the micropillar-arrayed substrate is characterized by a five-parameter …
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Evaporation-induced non-wetting droplets on superhydrophilic surfaces
… were used to fabricate well-defined silicon micropillar arrays with a square pattern with varying pillar diameter, height, and center-to-center spacing. Water droplets placed on these microstructured surfaces at room temperature demonstrated superhydrophilic behavior with liquid filling the …
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Micro and nanostructures for two-phase fluid and thermal transport
… numerical model for thin-film evaporation from micropillar array wick structures. The model can predict the dry-out heat flux on various micropillar structure geometries (diameter, pitch, and height) in the length scale range of 1-100 pm and capture the optimal geometries to maximize the dry-out …
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MICROELECTRODE ARRAY FOR CAPACITIVE TRANSDUCTION OF RETINAL RESPONSES
… neural activity sensing employ multi-electrode arrays (MEAs) that typically incorporate metal electrodes and measure currents via an electrochemical junction, leading to corrosion and charge transfer across the electrode-tissue interface. High-density neural interface technology will require …
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Engineering approaches to study lung mechanobiology
Engineering tools and techniques greatly expand the scope of biological studies, permitting investigation of the interplay between mechanical forces, and cell and tissue biology, and also enabling in vitro replication of the physiological environment. This dissertation describes the development of …