Flow–Structure Interaction Mechanism under Coriolis Conditions
Publication: Journal of Engineering Mechanics
Volume 147, Issue 4
Abstract
The Coriolis effect in centrifuge modeling of flow–structure interaction has not been well understood, and thus this paper presents numerical simulations to address this issue. The results indicate that the Coriolis acceleration obviously regulated the flow–structure interaction pattern. The maximum total impact force was amplified by approximately 2 times, and the force was distributed along the entire barrier surface when changing the Coriolis acceleration direction from acting at the slope to acting away from the slope. Reducing the flow velocity by 30%–40% decreased the amplification ratio by approximately 14%–29%. The alteration of the microcontact condition and the energy consumption of the dry granular flow was the main influence mechanism of the Coriolis acceleration on the flow’s impact behavior. The influence of the Coriolis effect on the viscous flow impact was completely different from that exerted on frictional flows. This discrepancy resulted from the intrinsic flow mobility determined by the material characteristics. Some practical discussions about centrifuge modeling of flow–structure interaction are made as well as some suggestions for future work.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This study was supported by the National Natural Science Foundation of China (Grant No. 41831291).
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Published In
Journal of Engineering Mechanics
Volume 147 • Issue 4 • April 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Apr 29, 2020
Accepted: Dec 4, 2020
Published online: Feb 11, 2021
Published in print: Apr 1, 2021
Discussion open until: Jul 11, 2021
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