Unsteady-state mass transfer from a binary gas bubble with changing volume |
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| Authors: | Gheorghe Juncu |
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| Affiliation: | 1. Department of Computer Science, “Al.I.Cuza” University of Ia?i, Romania;1. Liver Unit, Tor Vergata University, Rome, Italy;2. Department of Mathematics, Tor Vergata University, Rome, Italy;3. Liver Transplant Unit, Azienda Ospedaliera Città della Salute e della Scienza, University of Turin, Italy;4. Gastroenterology Unit, La Sapienza University, Rome, Italy;5. Liver Transplant Unit, University of Bologna, Italy;6. Liver Transplant Unit, Università of Padua, Italy;7. Centro Trapianti di Fegato, ISMETT, Palermo, Italy;8. Liver Transplant Unit, Niguarda Hospital, Milan, Italy;9. Centro Trapianti di Fegato, Ospedali Riuniti, Bergamo, Italy;10. Liver Transplant Unit, Università of Modena, Italy;11. National Transplant Centre, Rome, Italy;12. Digestive Disease Section, University of Milan Bicocca, Milan, Italy;13. Yale University Liver Centre, New Haven, USA;14. Italian Association for the Study of the Liver (AISF), Italian National Transplant Centre (CNT) and Italian Liver Transplant Centres, Italy;1. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China;2. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China |
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| Abstract: | Numerical methods are used to investigate the transient mass transfer from a binary gas bubble to an incompressible liquid. The bubble has two components: A – soluble and B – insoluble in the surrounding fluid. The concentration of A inside the bubble is considered spatially uniform but not constant in time. The maximum value of the initial volumetric fraction of A is 0.3. The mathematical model equations were solved numerically in spherical coordinates system. Creeping flow, moderate Re number flow, 10 ? Re ? 100, and potential flow around the bubble were assumed. The computations focused on the influence of the initial fraction of A and Henry number on the mass transfer rate for Pe ? 104. |
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