Experimental study of a microchannel bubble injector for microgravity applications

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hdl:2117/2331
Document typeArticle
Defense date2008-07
PublisherSpringer
Rights accessOpen Access
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Attribution-NonCommercial-NoDerivs 2.5 Spain
Abstract
We perform a quantitative characterization
of a microbubble injector in conditions relevant to
microgravity. The injector pregenerates a slug flow by
using a capillary T-junction, whose operation is robust
to changes in gravity level. We address questions
regarding the performance under different injection
conditions. In particular we focus on the variation of
both gas and liquid flow rates. The injection performance
is characterized by measuring bubble injection
frequency and bubble sizes. We obtain two distinct
working regimes of the injector and identify the optimal
performance as the crossover region between them.
CitationArias Calderón, S.; Ruiz, X.; Casademunt, J.; Ramírez Piscina, L.; González Cinca, R. Experimental study of a microchannel bubble injector for microgravity applications. Microgravity Science and Technology. 2008
ISSN1875-0494