Simulating Impeller Mixing Under Various Conditions

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Phillips, Heather
Durbin, Jonathan
Aikens, Kurt
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Houghton College
Impeller mixing, owing to its widespread industrial use, can cause significant financial losses if not performed efficiently. Computational fluid dynamics (CFD) can greatly aid in the design of mixing systems when it is sufficiently accurate. For this work, fluid mixing is performed using an A200 impeller operating in a baffled tank. Simulations were performed of this setup using different approaches and under various operating conditions. Results are compared to available experimental data to guide the development of an overall ANSYS Fluent mixing prediction methodology. Qualitative trends of the experimental data were successfully predicted and discrepancies were generally less than 20%. Overall, the methodology appears promising and will be used in the future to make more detailed predictions of mixing when the flow is transitional – a historically challenging task. Additionally, the approximate solution approach utilized here will be further examined in an attempt to reduce discrepancies between the simulation results and those of the experiments.
XXXVII Annual Rochester Symposium for Physics Students, SUNY Brockport, Brockport, NY., April 7, 2018.
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