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Prajapati P, Ein-Mozaffari F (2009) CFD investigation of the mixing of yield-pseudoplastic fluids with anchor impellers. Mihailova O et al (2018) Optimisation of mixing performance of helical ribbon mixers for high throughput applications using computational fluid dynamics. Kuncewicz C, Stelmach J (2017) Optimization of geometric parameters of a ribbon impeller. Khapre A, Munshi B (2015) Numerical investigation of hydrodynamic behavior of shear thinning fluids in stirred tank. Karray S et al (2011) Numerical simulation of fluid –structure interaction in a stirred vessel equipped with an anchor impeller. Jo HJ et al (2018) Analyses of dynamical systems structures and mixing patterns in an anchor agitator. Hadjeb A et al (2017) A new geometrical model for mixing of highly viscous fluids by combining two-blade and helical screw agitators. Įspinosa TS et al (1997) Power consumption of a dual turbine-helical ribbon impeller mixer in ungassed conditions. In: Driss Z, Necib B, Zhang HC (eds) CFD techniques and energy applications. ĭriss Z et al (2018) CFD investigation of the hydrodynamic structure around a modified anchor system. ĭineshkumar P et al (2012) Effect of impeller type on continuous-flow mixing of non-Newtonian fluids in stirred vessels through dynamic tests. īouanini M et al (2013) Numerical model for laminar flow in an agitated vessel by inclined blades anchor. Īubin J et al (2000) Blending of Newtonian and shear-thinning fluids in a tank stirred with a helical screw agitator. Īmeur H et al (2018) Performance of helical ribbon and screw impellers for mixing viscous fluids in cylindrical reactors. Īmeur H et al (2017) Performance of helical screw impellers for mixing of viscous liquids in cylindrical reactors. Īmeur H et al (2016) Data on mixing of viscous fluids by helical screw impellers in cylindrical vessels. (16)60671-6Īmeur H, Ghenaim A (2018) Mixing of complex fluids in a cylindrical tank by a modified anchor impeller. Īmeur H (2016) Effect of some parameters on the performance of anchor impellers for stirring shear-thinning fluids in a cylindrical vessel. Īmeur H (2015) Energy efficiency of different impellers in stirred tank reactors. Also, the comparison between the rectangular, octagonal and circular shapes of blades revealed that the octagonal shape (A-8b) yields the widest well-stirred region over the other cases, but the lowest power consumption is achieved with circular shape of blades.Īlcamo R et al (2005) Large-eddy simulation of turbulent flow in an unbaffled stirred tank driven by a Rushton turbine. Increasing the number of blades with inclination was found to be efficient to improve the mixing characteristics. The obtained results revealed a good enhancement of fluid flows in the vessel volume with the new suggested design.
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In this study, we used Ansys CFX 18.0 to investigate the effects of the anchor geometry, the number of blades and their inclination inside a stirred tank for low Reynolds numbers varying from 0.1 to 60.
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The flow topology strongly depends on geometrical configurations and the fluid characteristics. Mixing with mechanically stirred tanks is a process extensively used in different industrial processes, the choice of the mixing system changes with the application (homogenization, heat transfer, dispersion of a gaseous phase in a liquid, emulsion, etc.).