| Summary: | 碩士 === 國立成功大學 === 航空太空工程學系 === 105 === This dissertation is to investigate the various scale of mixing efficiency, which are influenced by different placing impellers with oscillating and rotation. Using Lattice Boltzmann method to analyze the flow field and concentration field of stirred tank within the moving impellers. There are three types of position of the two impellers, one is horizontal, the second one is vertical, and the third is putting each impeller on upper entrance and exit tube.
The result reveals that the oscillating motion could lead to a better mixing performance. Besides, under the same constant angular velocity the position of the impellers which located at upper entrance and exit is the best.
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