Number of the records: 1

Meniscus Dynamics in Bubble Formation. Part II: Model

SYSNO ASEP	0330037
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Meniscus Dynamics in Bubble Formation. Part II: Model
Title	Dynamika menisku při tvorbě bublin na perforovaném patře. Díl II: Model
Author(s)	Růžička, Marek (UCHP-M)_{RID, ORCID, SAI} Bunganič, Radovan (UCHP-M) Drahoš, Jiří (UCHP-M)_{RID, SAI}
Source Title	Chemical Engineering Research and Design. - : Elsevier - ISSN 0263-8762 Roč. 87, č. 10 (2009), s. 1357-1365
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	bubble formation ; periodic bubbling ; meniscus oscillations
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
R&D Projects	GA104/07/1110 GA ČR - Czech Science Foundation (CSF)
	IAA200720801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000271227500002
DOI	10.1016/j.cherd.2009.03.002
Annotation	A mathematical model was developed to describe the subsequent bubble formation from a single orifice on a perforated plate above a gas plenum. Special attention was paid to the behaviour of the meniscus inside the orifice and its role in the bubble formation process. The model is based on the mass and momentum balances and has two stages. The first bubbling stage A involves the bubble growth, ascent, and detachment. The second waiting stage B concerns the meniscus oscillations and the simultaneous plenum pressurization. The oscillating meniscus is approximated with a simple mechanical analogue, a liquid piston. The model agrees well with the experimental data reported in Part I of this study. In particular, the model is able to describe and explain the hysteresis phenomenon observed in the measurements.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2010

Number of the records: 1