An experimental study of free liquid surface motions in stirred tanks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F08%3A00020794" target="_blank" >RIV/60461373:22340/08:00020794 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
An experimental study of free liquid surface motions in stirred tanks
Original language description
We consider the liquid flow in a stirred tank with rotational mechanical impeller as a highly complex, multi-component dynamical system exhibiting unstable (pseudo-stationary) dynamical behavior. Within the variety of the flow components in a stirred tank large-scale, low frequency, pseudo-periodic fluctuations that substantially influence mixing characteristics of the stirred vessel are frequently encountered. These flow fluctuations ? instabilities ? are associated with recurrent fast liquid jets originating at the vessel bottom and ascending along the baffles and the tank wall. In our paper we aim to statistical and dynamical analysis of the free liquid surface motions in three stirred vessels and to investigation of occurrence of local macro-swellsof the liquid surface near a baffle. The experiments were carried out in standard flat-bottomed cylindrical mixing vessels with four radial wall baffles (inner diameter T = 0.29 m, T = 0.50 m and T = 1 m, respectively). Water was used as
Czech name
Pohyb volné hladiny kapaliny v míchacích nádobách ? experimenty a analýza
Czech description
Jsou prezentovány výsledky experimentálního studia pohybu volné hladiny kapaliny ve třech míchacích nádobách o průměru 0,29 m, 0,50 m a 1 m. Nádoby byly optřeny radiálními narážkami a promíchávány lopatkovými míchadly v širokém rozmezí frekvencí otáčení.Pohyby hladiny jsou charakterizovány statistickýnmi a chaotickými invarianty a jsou vyčísleny jejich závislosti na provozních podmínkách nádob.
Classification
Type
D - Article in proceedings
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA104%2F05%2F2500" target="_blank" >GA104/05/2500: Flow macro-instability in stirred vessels: experimental studies, description and modelling</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
CD-ROM of Full Texts CHISA 2008
ISBN
978-80-02-02047-9
ISSN
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e-ISSN
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Number of pages
17
Pages from-to
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Publisher name
Process Engineering Publisher
Place of publication
Praha
Event location
Praha
Event date
Aug 24, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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