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http://dx.doi.org/10.7734/COSEIK.2017.30.4.363

Effects of Design Parameters of Mixer Blades on Particle Mixing Performance  

Hwang, Seon-Pil (Department of Mechanical Engineering, Korea Maritime and Ocean University)
Park, Sanghyun (Department of Mechanical Engineering, Korea Maritime and Ocean University)
Sohn, Dongwoo (Department of Mechanical Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.4, 2017 , pp. 363-370 More about this Journal
Abstract
This paper is concerned with the evaluation of mixing performance of a particle mixer, which consists of a vertical cylindrical vessel and a rotating impeller with several blades. We consider four design variables for the mixer blades, such as the angle, length, and number of blades, and the gap between the blades and the vessel bottom. The particle mixing process due to the impeller rotation is simulated using the discrete element method, and the mixing performance is quantitatively evaluated by introducing a mixing index. Analyzing the main effects and interactions of the four design variables through the design-of-experiments approach, it is concluded that the blade angle has the most dominant influence on the mixing performance whereas the gap has no significant influence. In addition, we determine the best combination of design parameters to maximize the mixing performance.
Keywords
blade design; particle mixing; mixing index; discrete element method; design of experiments;
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Times Cited By KSCI : 4  (Citation Analysis)
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