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Volume 13
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10.3390/app132011367
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Article

Design and Analysis of the High-Speed Underwater Glider with a Bladder-Type Buoyancy Engine

by
Dae-Hyeong Ji
1,
Jung-Han Lee
1,
Sung-Hyub Ko
1,
Jong-Wu Hyeon
1,
Ji-Hyeong Lee
2,3,
Hyeung-Sik Choi
4 and
Sang-Ki Jeong
2,*
1
Marine Domain & Security Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea
2
Maritime ICT & Mobility Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea
3
Ocean Science and Technology School, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
4
Department of Mechanical Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2023, 13(20), 11367; https://doi.org/10.3390/app132011367
Submission received: 15 September 2023 / Revised: 12 October 2023 / Accepted: 13 October 2023 / Published: 16 October 2023
(This article belongs to the Special Issue Selected Papers from the 12th International Multi-Conference on Engineering and Technology Innovation (IMETI 2023))
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Abstract

This study entailed the design and analysis of a 400 m class underwater glider operated by a bladder-type buoyancy engine. The underwater glider was designed for high-speed movement with a maximum velocity of 2 knots. The shape of the hull was designed to reduce water resistance using the Myring hull profile equation. The reliability was verified by performing simulations using resistance coefficients. The relationship between the control value of the ballast discharged from the buoyancy engine and the glider’s speed according to the path angle was analyzed. Further, the relationship between the optimal glide angle and the design control value of the ballast was derived, and the optimal glider speed was estimated accordingly. Based on the analysis results, a bladder-type buoyancy engine was developed, and the maximum speed of the tested underwater glider was measured via sea trials.
Keywords: underwater glider; buoyancy engine; resistance coefficients; horizontal speed; optimal glide angle underwater glider; buoyancy engine; resistance coefficients; horizontal speed; optimal glide angle

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MDPI and ACS Style

Ji, D.-H.; Lee, J.-H.; Ko, S.-H.; Hyeon, J.-W.; Lee, J.-H.; Choi, H.-S.; Jeong, S.-K. Design and Analysis of the High-Speed Underwater Glider with a Bladder-Type Buoyancy Engine. Appl. Sci. 2023, 13, 11367. https://doi.org/10.3390/app132011367

AMA Style

Ji D-H, Lee J-H, Ko S-H, Hyeon J-W, Lee J-H, Choi H-S, Jeong S-K. Design and Analysis of the High-Speed Underwater Glider with a Bladder-Type Buoyancy Engine. Applied Sciences. 2023; 13(20):11367. https://doi.org/10.3390/app132011367

Chicago/Turabian Style

Ji, Dae-Hyeong, Jung-Han Lee, Sung-Hyub Ko, Jong-Wu Hyeon, Ji-Hyeong Lee, Hyeung-Sik Choi, and Sang-Ki Jeong. 2023. "Design and Analysis of the High-Speed Underwater Glider with a Bladder-Type Buoyancy Engine" Applied Sciences 13, no. 20: 11367. https://doi.org/10.3390/app132011367

APA Style

Ji, D.-H., Lee, J.-H., Ko, S.-H., Hyeon, J.-W., Lee, J.-H., Choi, H.-S., & Jeong, S.-K. (2023). Design and Analysis of the High-Speed Underwater Glider with a Bladder-Type Buoyancy Engine. Applied Sciences, 13(20), 11367. https://doi.org/10.3390/app132011367

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