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CFD analysis of industrial multi-staged stirred vessels

Abstract : This paper presents tools for analysis of CFD results adapted for flows in multi-stage stirred vessels through out two industrial cases. Those tanks fitted with double-flow impellers are used first to cool down highly viscous resins and subsequently for indirect emulsification. Since the simulation of these processes in their whole complexity would be unrealistic, it considers single-phase flows without heat transfer. The result analysis in order to prove that the mixing and the circulation are effective is not usual; in these cases, the circulation and impeller numbers are not adapted. The average axial flow numbers are relevant of the circulation in the whole tank and of the connection between the flows produced by the propellers in the given configuration. The velocity profiles give relevant results, but are not sufficient whereas the particle tracking validates that the propellers do not work together in one case and do work together in a second one.
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Submitted on : Friday, April 23, 2010 - 1:59:59 PM
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Marion Alliet-Gaubert, Rodolphe Sardeing, Catherine Xuereb, Phillippe Hobbes, Bertrand Letellier, et al.. CFD analysis of industrial multi-staged stirred vessels. Chemical Engineering and Processing: Process Intensification, Elsevier, 2006, 45 (5), pp.415-427. ⟨10.1016/j.cep.2005.11.003⟩. ⟨hal-00475992⟩



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