10514 非構造格子を用いた撹拌槽内流動解析(熱工学・乱流)

概要

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Numerical analysis of flows induced by the impellers, Rushton disc turbine and a pitched blade turbine, in an unbaffled stirred tank were performed. Unstructured meshes were used in order to accurately consider geometries of the impellers and the vessel and governing equations which were adopted a rotating reference frame attached to the impellers were discretized by means of a finite element method. Standard k-e model and a k-e model modified to time-scale were adopted The calculated results were compared to experimental ones. The calculated results were reproduced experimental ones as for circulation patterns. However, circumferential velocity near free surface and the shafts were so weak in the calculated results, whereas experimental ones showed the so-called Rankin's combined vortex.
一般社団法人日本機械学会の論文
2005-03-17