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JMSE
Special Issues
Computational and Experimental Hydrodynamics of Marine Propellers and Propulsion
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Computational and Experimental Hydrodynamics of Marine Propellers and Propulsion

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 (30 November 2023) | Viewed by 2128

Special Issue Editor

Dr. Weichao Shi

E-Mail Website
Guest Editor
Mechanical Engineering and Marine Technology, School of Engineering, Newcastle University, Newcastle upon Tyne, UK
Interests: marine propulsion; marine renewable energy

Special Issue Information

Dear Colleagues,

Marine propellers and propulsors are in the center of the propulsion system for marine vehicles. With the recent development of energy transition, alternative fuel and electrification, higher requirement for smooth drive with minimized load fluctuation has been raised. Meanwhile, low noise signatures are praised by not only defense applications but also now for commercial shipping in order to mitigate the impact on marine lives.

With the development of computational and experimental hydrodynamics, accurate modelling and testing can be performed to investigate the hydrodynamic and hydroacoustic performance of marine propulsors. Optimizations are now looking further beyond openwater performance up to more comprehensive evaluations.

This Special Issue aims to gather the latest research and development in Computational and Experimental Hydrodynamics of Marine Propellers and Propulsion to disseminate the latest research achievement in this area. We welcome your submission within, but not limited to, the below areas:

  1. Computational fluid dynamics modelling for propellers and propulsion systems.
  2. Experimental testing for propellers and propulsion systems.
  3. Fluid dynamics modelling and testing for marine propulsion systems.
  4. Acoustic modelling and testing for marine propulsors and propulsion systems.
  5. Hydrodynamics in energy saving devices and technologies.

Original research articles and review articles are welcomed in this Special Issue.

Dr. Weichao Shi
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

  • marine propellers and propulsion systems
  • computational fluid dynamics
  • experimental hydrodynamics

Published Papers (2 papers)

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Research

20 pages, 20931 KiB  
Article
Study on Vibration Attenuation Performance of Pump-Jet Propulsor Duct with an Axial Slot Structure
by Lin Ke, Jinming Ye and Xiaoyu Zou
J. Mar. Sci. Eng. 2023, 11(12), 2277; https://doi.org/10.3390/jmse11122277 - 30 Nov 2023
Viewed by 754
Abstract
To reduce the structural vibration of the duct structure in pump-jet propulsors (PJPs) and lower the induced vibration noise, this study learned from the “processor box” in an aero-engine and set a certain number of axial slots in the PJP. First, using finite [...] Read more.
To reduce the structural vibration of the duct structure in pump-jet propulsors (PJPs) and lower the induced vibration noise, this study learned from the “processor box” in an aero-engine and set a certain number of axial slots in the PJP. First, using finite element analysis, both dry and wet modes of the PJP ducts with and without an axial slot structure were simulated for analysis. Next, with the two-way fluid–solid coupling calculation method, the vibration performances of the PJP ducts with and without axial slots were contrasted and studied. The differences in calculation results under different duct structures were compared from three aspects—the vibration displacement, velocity, and acceleration of the duct and mesh nodes. According to the present results, after the addition of axial slots, the vibration displacement, the vibration velocity, and the vibration acceleration can be significantly reduced, especially in the back segment of the duct. Meanwhile, it can be concluded that it is quite important to select vibration acceleration for structural analysis in evaluating the PJP vibration. This study can provide a reference for further designs of low-noise PJPs. Full article
(This article belongs to the Special Issue Computational and Experimental Hydrodynamics of Marine Propellers and Propulsion)
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22 pages, 14119 KiB  
Article
Acoustic Field Radiation Prediction and Verification of Underwater Vehicles under a Free Surface
by Yung-Wei Chen, Cheng-Cheng Pan, Yi-Hsien Lin, Chao-Feng Shih, Jian-Hong Shen and Chun-Ming Chang
J. Mar. Sci. Eng. 2023, 11(10), 1940; https://doi.org/10.3390/jmse11101940 - 8 Oct 2023
Viewed by 1069
Abstract
This study aimed to examine the acoustic field radiated by propellers and underwater vehicles. For the verification of sound radiation in underwater vehicles, numerical methods are widely used in addition to experiments and propeller blade frequencies for calculation and validation. Numerical convergence and [...] Read more.
This study aimed to examine the acoustic field radiated by propellers and underwater vehicles. For the verification of sound radiation in underwater vehicles, numerical methods are widely used in addition to experiments and propeller blade frequencies for calculation and validation. Numerical convergence and accuracy are more important for near-field and far-field problems. This paper uses the boundary element method (BEM) to assess the convergence of the finite volume method (FVM). In this study, the FVM, including the Reynolds-averaged Navier–Stokes method and the Ffowcs Williams–Hawkings (FW-H) acoustic model, is used to investigate the influence of various geometric inflows on the hydrodynamic and noise performance of the propeller. Then, the sound radiation of the FVM is compared with the BEM at the far field to determine the number of meshed elements. Furthermore, spectral analysis is being conducted to examine the noise generated by the underwater vehicle and propeller. The objective is to investigate the influence of the free surface on propeller efficiency. After verifying the numerical simulation, the results indicate that a relationship can be established between water pressure and propeller thrust under specific conditions. This relationship can be used to estimate the magnitude of propeller thrust at different water depths. The simulated results of propeller thrust, torque coefficient, propulsion efficiency, and sound radiation in this study are consistent with experimental values. This demonstrates the accuracy and practicality of the findings of numerical procedures in engineering applications. Full article
(This article belongs to the Special Issue Computational and Experimental Hydrodynamics of Marine Propellers and Propulsion)
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