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Bubbling Controlled by Needle Movement
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SYSNO ASEP 0310271 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Bubbling Controlled by Needle Movement Title Tvorba bublin řízená pohybem jehly Author(s) Vejražka, Jiří (UCHP-M) RID, ORCID, SAI
Zedníková, Mária (UCHP-M) RID, ORCID, SAI
Stanovský, Petr (UCHP-M) RID, ORCID, SAI
Růžička, Marek (UCHP-M) RID, ORCID, SAI
Drahoš, Jiří (UCHP-M) RID, SAISource Title Fluid Dynamics Research. - : Elsevier - ISSN 0169-5983
Roč. 40, 7-8 (2008), s. 521-533Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords bubble ; detechment ; control Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GP101/05/P229 GA ČR - Czech Science Foundation (CSF) GA104/05/2566 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000257356300007 DOI 10.1016/j.fluiddyn.2007.12.008 Annotation A device for on-demand production of bubbles is presented. The device is based on a movable needle, through which air is injected. Bubbling is controlled by a rapid needle movement, which induces the bubble detachment. Conditions for proper function of the device include the limit on the flow rate through the needle, sufficient pressure drop of the needle and an adequate needle acceleration. Functionality of the device is demonstrated. Bubbling from a stationary needle is also discussed and a scaling for bubble size is provided for the case of short needles, to which a constant flow rate is imposed through tubes of a finite volume. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2009
Number of the records: 1