Journal
MICROGRAVITY SCIENCE AND TECHNOLOGY
Volume 21, Issue 1-2, Pages 107-111Publisher
SPRINGER
DOI: 10.1007/s12217-008-9060-1
Keywords
Bubble; Microgravity; Multiphase flow; Gas injection
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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.
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