Study on Oscillatory and Undulatory Motion of Robotic Fish
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Title
- Study on Oscillatory and Undulatory Motion of Robotic Fish
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Author(s)
- Nam Anh, Phan Huy; Choi, Hyeung-Sik; Huang, Jiafeng; Zhang, Ruochen; Kim, Jihoon
- KIOST Author(s)
- Kim, Jihoon(김지훈)
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Alternative Author(s)
- 김지훈
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Publication Year
- 2024-04
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Abstract
- This paper conducts a comprehensive analysis of undulating and oscillatory movements in fish, utilizing numerical simulations to explore correlations among fin thrust and swimming speed. The study distinguishes itself through a unique approach by employing kinematic equations of motion control, specifically in oscillation and undulation, for computational fluid dynamics. Despite increasing energy loss with undulation, the study reveals a reduction in power demand with oscillation, underscoring its effectiveness in achieving desired speeds. The dynamics of undulating fins in aquatic and aerial locomotion remain insufficiently understood. The trade-off between more energy-consuming but highly propulsive movements or simpler and faster movements requires sophisticated design techniques to reduce volume. The geometry, developed using Rhino 6 software, incorporates precise fluid resistance calculations conducted with Ansys Fluent 19. Spanning flow velocities from 1 to 4 m/s were used for the simulation condition. Critical factors such as flexibility, viscosity, and shape change were meticulously examined for their impact on efficiency enhancement.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/45532
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DOI
- 10.3390/app14083239
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Bibliographic Citation
- Applied Sciences-basel, v.14, no.8, 2024
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Publisher
- MDPI
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Keywords
- tail undulation; caudal fin oscillation; wake characteristics; CFD Ansys Fluent
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Type
- Article
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Language
- English
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