Vortex shape in unbaffled stirred vessels: experimental study via digital image analysis

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Abstract

There is a growing interest in using unbaffled stirred tanks for addressing certainprocessing needs. In this work, digital image analysis coupled with a suitableshadowgraphy-based technique is used to investigate the shape of the free-surfacevortex that forms in uncovered unbaffled stirred tanks.The technique is based on back-lighting the vessel and suitably averaging vortex shapeover time. Impeller clearance from vessel bottom and tank filling level are varied toinvestigate their influence on vortex shape. A correlation is finally proposed to fullydescribe vortex shape also when the vortex encompasses the impeller.
Lingua originaleEnglish
Titolo della pubblicazione ospiteChemical Engineering Transactions. Vol. 24
Pagine1387-1392
Numero di pagine6
Stato di pubblicazionePublished - 2011

Serie di pubblicazioni

NomeCHEMICAL ENGINEERING TRANSACTIONS

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.1500.1500???

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