Analysis of a New Adjustable Mixer Base on Large Eddy Simulation

Abstract:

Abstract. This paper presents a new type of adjustable mixing equipment, and the internal flow field of the adjustable mixer have been studied by using the model of LES(Large eddy simulation),and the pressure loss, the speed change and vortex scale have been studied. In conclusion, along with blades angle and number increases, the flow resistance increases violently, so the range of blade rotating angle should be controlled within 30 degrees. As the depth of the pipeline velocity is increasingly large, large velocity gradient is contributed to the collisions between the colloidal particles. In pre-mixed, the vortex effect of the pipeline highly enhances the vortex diffusion, and improves the mixing efficiency. The vortex strength will be reinforced and dimension will be reduced, with the vanes cutting the flow, which can help flocculation.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 2763-2769
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.2763
• Online since: November 2012
• Authors: Xin Nie, Lin Xiang Ding, Bing Guo, Li Bo Chen, Hua Chen Pan
• Keywords: Adjustable Mixer, Large Eddy Simulation (LES), Pressure Loss, Velocity, Vorticity

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