https://doi.org/10.1140/epje/s10189-025-00473-8
Regular Article - Flowing Matter
Numerical simulation study on drag reduction performance of streamline collective model on plane
Department of Mechanical and Electrical Engineering, Ocean University of China, 266404, Qingdao, China
Received:
16
December
2024
Accepted:
17
January
2025
Published online:
1
February
2025
The energy carried by underwater vehicles is primarily employed to overcome water resistance. Reducing resistance can significantly enhance the speed and endurance of underwater vehicles. This study draws inspiration from biomimicry principles and proposes a novel drag reduction method inspired by the structural dynamics of fish schools. Building upon the structure of fish school, a collective model of streamlined forms is established. These streamlined collective models are arranged on a plane, and the study investigates the impact of various streamlined collective structures on planar resistance. By changing the spacing of the streamline collective model and flow field velocity, the drag reduction rules of different models at different flow rates are obtained. Through flow field analysis, the mechanism through which streamlined collective models achieve drag reduction on a flat surface is revealed. The research indicates that the streamlined collective models reduce total resistance by diminishing the viscous drag on the flat plate. The drag reduction effect generally decreases and then increases as the lateral spacing of the streamlined collective model increases. The maximum drag reduction rate can reach up to 8.63%. This study provides a novel approach for drag reduction in underwater vehicles, paving the way for further exploration and application development in this field.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
