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Unmanned Underwater Vehicle – Hydrodynamics and Navigation System
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Unmanned Underwater Vehicle – Hydrodynamics and Navigation System

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: closed (15 February 2021) | Viewed by 13280

Special Issue Editor

Prof. Dr. Yu-Hsien Lin

E-Mail Website
Guest Editor
Dept. Systems and Naval Mechatronic Engineering, National Cheng Kung University, No.1, University Rd., Tainan City 70101, Taiwan
Interests: autonomous underwater vehicle; ocean engineering; ocean renewable energy; intelligent image-base recognition and underwater guidance system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is aimed at encouraging innovation in research and development of unmanned underwater vehicle (UUV), e.g., AUV and ROV. Since marine research and exploration have promoted a necessity of UUV industries in the recent decades, UUVs provide a new kind of marine research platform that has been well known as an asset in many fields of oceanographic or naval research. Meanwhile, estimates of hydrodynamics and designs of control systems need to be developed towards improving the navigation performances of a UUV. Therefore, this Special Issue shall include research on the following topics: (a) development of prototypes, and experiments conducted in the wave flume or sea trials; (b) navigation systems; (c) control systems; (d) dynamic positioning; (e) underwater inspection; (f) hydrodynamic analysis; and (g) maneuvering performance. 

Prof. Yu-Hsien Lin
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • UUV
  • AUV
  • ROV
  • Hydrodynamics
  • Navigation system
  • Underwater inspection
  • Dynamic positioning

Published Papers (4 papers)

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Research

20 pages, 6033 KiB  
Article
Underwater Glider Propulsion Systems VBS Part 1: VBS Sizing and Glider Performance Analysis
by Juan Pablo Orozco-Muñiz, Tomas Salgado-Jimenez and Noe Amir Rodriguez-Olivares
J. Mar. Sci. Eng. 2020, 8(11), 919; https://doi.org/10.3390/jmse8110919 - 14 Nov 2020
Cited by 5 | Viewed by 3167
Abstract
The Variable Buoyancy System (VBS) is a critical device in the operation of underwater gliders that should be properly sized to achieve the required vehicle propulsion; safety within the operating range; and adequate efficiency at the nominal depth rating. The VBS budget volume [...] Read more.
The Variable Buoyancy System (VBS) is a critical device in the operation of underwater gliders that should be properly sized to achieve the required vehicle propulsion; safety within the operating range; and adequate efficiency at the nominal depth rating. The VBS budget volume depends mainly on the glider hydrodynamics and the main operating states of the vehicle. A method is proposed with analytical equations to analyze the performance of underwater gliders and to estimate the resultant velocities of the vehicle as a function of the buoyancy change and the glider angle. The method is validated to analyze the glider performance of underwater gliders and is essential to get the main design requirement for the propulsion system: the VBS budget volume. The paper presents the application of the method to obtain the VBS sizing for an academic glider; a comparison with the historical hydrodynamic data of the Slocum glider; the results of the glider performance study; and the development of the characteristic charts necessary to evaluate the performance of the vehicle and its flight parameters. Full article
(This article belongs to the Special Issue Unmanned Underwater Vehicle – Hydrodynamics and Navigation System)
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19 pages, 4896 KiB  
Article
The Investigation of a Sliding Mesh Model for Hydrodynamic Analysis of a SUBOFF Model in Turbulent Flow Fields
by Yu-Hsien Lin and Xian-Chen Li
J. Mar. Sci. Eng. 2020, 8(10), 744; https://doi.org/10.3390/jmse8100744 - 25 Sep 2020
Cited by 21 | Viewed by 4512
Abstract
A computational fluid dynamics (CFD)-based simulation using a finite volume code for a full-appendage DARPA (Defense Advanced Research Projects Agency) SUBOFF model was investigated with a sliding mesh model in a multi-zone fluid domain. Unsteady Reynolds Averaged Navier–Stokes (URANS) equations were coupled with [...] Read more.
A computational fluid dynamics (CFD)-based simulation using a finite volume code for a full-appendage DARPA (Defense Advanced Research Projects Agency) SUBOFF model was investigated with a sliding mesh model in a multi-zone fluid domain. Unsteady Reynolds Averaged Navier–Stokes (URANS) equations were coupled with a Menter’s shear stress transport (SST) k-ω turbulence closure based on the Boussinesq approximation. In order to simulate unsteady motions and capture unsteady interactions, the sliding mesh model was employed to simulate flows in the fluid domain that contains multiple moving zones. The pressure-based solver, semi-implicit method for the pressure linked equations-consistent (SIMPLEC) algorithm was employed for incompressible flows based on the predictor-corrector approach in a segregated manner. After the grid independence test, the numerical simulation was validated by comparison with the published experimental data and other numerical results. In this study, the capability of the CFD simulation with the sliding mesh model was well demonstrated to conduct the straight-line towing tests by analyzing hydrodynamic characteristics, viz. resistance, vorticity, frictional coefficients, and pressure coefficients. Full article
(This article belongs to the Special Issue Unmanned Underwater Vehicle – Hydrodynamics and Navigation System)
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10 pages, 3771 KiB  
Communication
Hydrodynamic Performance of Autonomous Underwater Gliders with Active Twin Undulatory Wings of Different Aspect Ratios
by Yongcheng Li, Jianxin Hu, Qiuzhuo Zhao, Ziying Pan and Zheng Ma
J. Mar. Sci. Eng. 2020, 8(7), 476; https://doi.org/10.3390/jmse8070476 - 28 Jun 2020
Cited by 10 | Viewed by 2551
Abstract
The propulsive performance of a bio-inspired autonomous underwater glider (AUG) with active twin undulatory wings undergoing undulatory motion was investigated by numerically solving the viscous incompressible Navier–Stokes equations, coupled with the immersed boundary method. The aspect ratio (AR) effects of the undulatory wings [...] Read more.
The propulsive performance of a bio-inspired autonomous underwater glider (AUG) with active twin undulatory wings undergoing undulatory motion was investigated by numerically solving the viscous incompressible Navier–Stokes equations, coupled with the immersed boundary method. The aspect ratio (AR) effects of the undulatory wings were studied. The simulation results showed that with the increase of AR, the thrust force generated by the active twin undulatory wings showed a linear growth, while the propulsion efficiency of the AUG increased to the peak and then decreased. The optimum magnitude of AR around 2 was obtained in the current study. The vortex structures in the wake of the active twin wings are also presented and discussed. The conclusions acquired here could provide guidance for the new conceptual design of bio-inspired AUGs. Full article
(This article belongs to the Special Issue Unmanned Underwater Vehicle – Hydrodynamics and Navigation System)
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20 pages, 15371 KiB  
Article
The Effect of Mass Ratio and Damping Coefficient on the Propulsion Performance of the Semi-Active Flapping Foil of the Wave Glider
by Zhanfeng Qi, Min Jiang, Lishuang Jia, Bo Zou and Jingsheng Zhai
J. Mar. Sci. Eng. 2020, 8(5), 303; https://doi.org/10.3390/jmse8050303 - 26 Apr 2020
Cited by 11 | Viewed by 2272
Abstract
A numerical investigation on the propulsion performance of the semi-active flapping foil of the wave glider with different mass ratio and damping coefficient is investigated. The commercial CFD software Fluent is used to solve the URANS equations around the flapping foil by the [...] Read more.
A numerical investigation on the propulsion performance of the semi-active flapping foil of the wave glider with different mass ratio and damping coefficient is investigated. The commercial CFD software Fluent is used to solve the URANS equations around the flapping foil by the Finite Volume Method. A mesh of 2D NACA0012 foil with the Reynolds number Re = 42,000 is used in all simulations. We first analyze the effect of the mass ratio on the mean output power coefficient and propulsion efficiency and note that with the variation of the mass ratio, the propulsion efficiency decreases slightly. Besides, we find that the mass ratio has a noticeable influence on the mean output power coefficient, and the influence is determined by the reduced frequency. For high reduced frequency, with the increase of the mass ratio, the propulsion performance of the flapping foil decreases monotonously. For low reduced frequency, the mean output power increases slightly. For critically reduced frequency, the mean output power coefficient of the foil firstly increases and then decreases via the mass ratio increase. Then, we examine the influence of the damping coefficient on the propulsion performance of the flapping foil and find that the damping coefficient has a severe adverse effect on the output power and propulsion efficiency. We conclude that the influence of the damping coefficient should be considered first when we design the propulsion device of the semi-active flapping foil. Meanwhile, we should also consider the sea conditions to choose the mass ratio to optimize the flapping foil. Full article
(This article belongs to the Special Issue Unmanned Underwater Vehicle – Hydrodynamics and Navigation System)
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