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Optimum shape and process design of single rotor equipment for its mixing performance using finite volume method  

Kim, Nak-Soo (Dept. of Mechanical Engineering, Sogang University)
Lee, Jae-Yeol (Dept. of Mechanical Engineering, Sogang University)
Publication Information
Korea-Australia Rheology Journal / v.21, no.4, 2009 , pp. 289-297 More about this Journal
Abstract
We numerically analyzed flow characteristics of the polymer melt in the screw equipment using a proper modeling and investigated design parameters which have influence on the mixing performance as the capability of the screw equipment. We considered the non-Newtonian and non-isothermal flow in a single rotor equipment to investigate the mixing performance with respect to screw dimensions as shape parameter of the single rotor equipment and screw speed as process parameter. We used Bird-Carreau-Yasuda model as a viscous model of the polymer melt and the particle tracking method to investigate the mixing performance in the screw equipment and considered four mixing performance indexes: residence time distribution, deformation rate, total strain and particle standard deviation as a new mixing performance index. We compared these indexes to determine design parameters and object function. On basis of the analysis results, we carried out the optimal design by using the response surface method and design of experiments. In conclusion, the differences of results between the optimal value and numerical analysis are about 5.0%.
Keywords
single rotor equipment; mixing performance; design of the experiments; response surface method; optimum design;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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