InImpact: The Journal of Innovation Impact

Publisher Future Technology Press
Vol. 7 No. 2 KES Transactions on SDM I - Sustainable Design and Manufacturing 2014
Volume Editors KES International
Journal ISSN 2051-6002
Article TitleAn experimental and CFD investigation into the mixing in a closed system stirred vessel
Primary AuthorJennifer Thompson, Swansea University
Other Author(s) Diane McBride; Oubay Hassan; Sam Rolland; Nicholas Lavery; David Bould
Pages 720 - 731
Article ID sdm14-107
Publication Date 01-May-16
AbstractAn investigation has been undertaken into the mixing mechanisms involved in a closed tank stirred vessel utilising a wide paddle agitator, for fluids in the viscosity range of 1 to 5.5 mPa s. In particular, the effect of fill depth on the mixing time has been considered, as this has a direct impact on the usability of the mixing process equipment for scaled-down batch production. Experimental work has been undertaken and this has been used to develop a suitable computational fluid dynamics (CFD) model which implements the Multiple Reference Frame (MRF) approach with the addition of a virtual tracer used to calculate mix time. A study into whether laminar or turbulent models are required and an appropriate method for the implementation of turbulence has been established. The results allow identification of the optimum ratio of fill depth to paddle height to be established. Additionally, the developed CFD model will allow for further investigation into the effects of other process parameters.
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