Browsing Department of Materials Science and Metallurgy by Author "Spelman, Tamsin A"
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Arbitrary axisymmetric steady streaming: Flow, force and propulsion
Spelman, Tamsin A; Lauga, Eric Jean-Marie (SpringerJournal of Engineering Mathematics, 2016)A well-developed method to induce mixing on microscopic scales is to exploit flows generated by steady streaming. Steady streaming is a classical fluid dynamics phenomenon whereby a time-periodic forcing in the bulk or ...
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Bubble-based acoustic micropropulsors: active surfaces and mixers.
Bertin, Nicolas; Spelman, Tamsin A; Combriat, Thomas; Hue, Hervé; Stéphan, Olivier; Lauga, Eric Jean-Marie; Marmottant, Philippe (Royal Society of ChemistryLab on a chip, 2017-04-04)Acoustic micropropulsors present great potential for microfluidic applications. The propulsion is based on encapsulated 20 μm bubbles excited by a contacless ultrasonic transducer. The vibrating bubbles then generate a ...
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Propulsion of Bubble-Based Acoustic Microswimmers
Bertin, Nicolas; Spelman, Tamsin A; Stephan, Olivier; Gredy, Laetitia; Bouriau, Michel; Lauga, Eric Jean-Marie; Marmottant, Philippe (American Physical SocietyPhysical Review Applied, 2015-12-29)Acoustic microswimmers present a great potential for microfluidic applications and targeted drug delivery. Here, we introduce armored microbubbles (size range, 10–20 μm) made by three-dimensional microfabrication, which ...