Numerical Simulation of T-shaped Stirrer
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Abstract:
The flow field of a new T-shaped stirrer was simulated using the multiple reference frame (MRF) method in the computational fluid dynamics (CFD) software FLUENT. The intensity of turbulence, flow field characteristics, mean velocity distribution, and mixing power of the T-shaped stirrer, open turbine stirrer, and rushton turbine stirrer were analyzed and compared, and the results suggested that the T-shaped stirrer has a better flow field distribution to achieve better mixing effects. The mixing characteristics of T-shaped stirrer with different mounting heights were analyzed, and the best mounting height was obtained as 150mm under the condition of fixed stirred tank size. The turbulence intensity and mixing power of the T-shaped stirrer with different numbers of blades were investigated, which showed that the mixing power increases with the increasing number of blades and the T-shaped stirrer with 3 blades has the best turbulence intensity distribution. The research can provide an important basis for the analysis and development of new stirrer.
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