characterization of the performance of an injector for the controlled generation of microbubbles
- Paper number
IAC-08.A2.4.1
- Author
Mr. Santiago Arias, Universitat Politècnica de Catalunya, Spain
- Coauthor
Dr. Xavier Ruiz, Universitat Rovira i Virgili, Spain
- Coauthor
Dr. Laureano Ramírez-Piscina, Institut d'Estudis Espacials de Catalunya, Spain
- Coauthor
Dr. Jaume Casademunt, Universitat de Barcelona, Spain
- Coauthor
Dr. Ricard González-Cinca, Universitat Politècnica de Catalunya, Spain
- Year
2008
- Abstract
We perform an extensive characterization of a recently reported microbubble injector in conditions relevant to microgravity [1]. Injection of bubbles is based on the generation of a slug flow in a capillary T-junction, whose operation is robust to changes in gravity level. We address questions regarding the performance under different working regimes. In particular we span a large range of parameters such as gas and liquid injection rates and capillary diameters.
The injection performance is characterized by measuring bubble injection frequency and bubble size distribution [2]. Limits of operation performance regarding the control of bubble sizes are evaluated, and the optimal performance has been identified.
[1].- J. Carrera, X. Ruiz, L. Ramírez-Piscina, J. Casademunt, M. Dreyer, Generation of a Monodisperse Microbubble Jet in Microgravity, AIAA Journal, Submitted (2007).
[2].- S. Arias, X. Ruiz, L. Ramírez-Piscina, J. Casademunt, R. González-Cinca, Experimental study of a microchannel bubble injector for microgravity applications, MST Journal, Submitted (2007).
- Abstract document
- Manuscript document
IAC-08.A2.4.1.pdf (🔒 authorized access only).
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