“Impeller Mixing Simulations of Transitional Flow
Impellers have a wide variety of industrial applications and are utilized in many industries. They are an integral part of the mixing process. The potential for operating inefficiencies causing large financial losses motivate the field to develop processes with which to accurately model the mixing process. Computational fluid dynamics (CFD) is a powerful tool for analyzing mixing scenarios. Multiple methodologies were used to simulate impeller mixing at different operating conditions. Results were compared to experimental data provided by SPX Flow to assess the validity of these methodologies. It is hoped that these comparisons will lead to a proper methodology for simulating impellers operating in the transitional flow regime, which has notoriously been a challenging task. Presently, the mixing problem is being evaluated in a baffled tank with an A200 impeller at various Reynolds numbers. Power number and mixing time predictions are calculated and compared with available data and correlations.
XXXVIII Annual Rochester Symposium for Physics Students, University of Rochester, March 30, 2019.
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