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Evolutional Marine Propulsion System Design for the Carbon Neutral World
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Evolutional Marine Propulsion System Design for the Carbon Neutral World

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 (25 October 2023) | Viewed by 5801

Special Issue Editors

Prof. Dr. Noriyuki Sasaki

E-Mail Website
Guest Editor
Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow, UK
Interests: new propulsion system concepts; optimal ship stern design; new regulations (EEDI, EEXI, MPR etc.)
Prof. Dr. Mehmet Atlar

E-Mail Website
Guest Editor
Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow, UK
Interests: hydrodynamic ship design; powering and propulsion; cavitation; underwater radiated noise
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Marine propellers have a long history of more than 200 years. During this long history, propeller design has become more sophisticated and subdivided.

On the other hand, the propeller not only plays the role of a propulsion device, but also greatly affects other performances such as maneuverability due to interference with the hull and rudder.

Furthermore, the improvement of hull resistance recently neared the limit, and the number of ships equipped with so-called energy-saving devices (ESDs) in the ship stern is increasing. In such ships, propeller design methods have also changed significantly from the past.

About 50 years ago, the goal of propeller design was to provide maximum propulsive efficiency while satisfying the so-called propeller design conditions that came from the main engine rating and wake flow generated by the ship stern. However, interactive optimization including the engine selection and even the optimum stern shape is an important task for propeller design, taking sufficient maneuverability and mutual interference with ESDs into account.

At present, propellers have come to play an important role in regulations such as EEDI, EEXI, minimum power requirements and underwater propeller noise regulations.

In this Special Issue, we would like to review the latest technology mentioned above, focusing on aspects not considered in previous conventional propeller design.

Prof. Dr. Noriyuki Sasaki
Prof. Dr. Mehmet Atlar
Guest Editors

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

  • propeller design impact on new regulations
  • interaction among propeller, hull and rudder
  • optimum propeller design
  • carbon neutral
  • green ship

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Published Papers (3 papers)

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Research

18 pages, 8219 KiB  
Article
Flow and Cavity Measurements in a Super-Cavitating Propeller
by Alessandro Capone, Francisco Alves Pereira and Fabio Di Felice
J. Mar. Sci. Eng. 2024, 12(2), 243; https://doi.org/10.3390/jmse12020243 - 30 Jan 2024
Viewed by 1197
Abstract
The design of super-cavitating propellers takes advantage of the development of air cavities on the blades’ surface to reduce drag and, ultimately, increase efficiency. The mechanism of flow modification induced by the development of a cavity on the propeller blades was investigated experimentally [...] Read more.
The design of super-cavitating propellers takes advantage of the development of air cavities on the blades’ surface to reduce drag and, ultimately, increase efficiency. The mechanism of flow modification induced by the development of a cavity on the propeller blades was investigated experimentally via phase-locked laser Doppler velocimetry measurements. A large cavity extending beyond the blades’ trailing edge and enclosing the back of the blades was identified at high loading conditions. A robust methodology to quantitatively analyze the size of the cavity is presented. The analysis of the flow fields showed that, under fully developed cavitation conditions, the acceleration of the axial and tangential flow in the inter-blade region was observed, accompanied by a reduction in tip-vortex development. Full article
(This article belongs to the Special Issue Evolutional Marine Propulsion System Design for the Carbon Neutral World)
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22 pages, 23073 KiB  
Article
A Study on the Wake Evolution of a Set of RIM-Driven Thrusters
by Stefano Gaggero
J. Mar. Sci. Eng. 2023, 11(9), 1659; https://doi.org/10.3390/jmse11091659 - 24 Aug 2023
Cited by 10 | Viewed by 1297
Abstract
In the current paper, high-fidelity improved delayed detached-eddy simulations (IDDES) using the OpenFOAM library are employed to characterize the performances and the wake dynamics of RIM-driven thrusters. Despite their relatively old conception, this type of propulsors has gained attention only recently thanks to [...] Read more.
In the current paper, high-fidelity improved delayed detached-eddy simulations (IDDES) using the OpenFOAM library are employed to characterize the performances and the wake dynamics of RIM-driven thrusters. Despite their relatively old conception, this type of propulsors has gained attention only recently thanks to innovative manufacturing technologies and materials, which finally have made possible their practical implementation. Fostered by stringent regulations on radiated noise and emissions enforced in protected areas, they are also replacing conventional thrusters and main propulsors. By mitigating the tip vortex cavitation and, more in general, by reducing the strength of tip vortices, indeed, these propulsors may grant a reduction in the induced pressure pulses and of the radiated noise without excessively sacrificing the efficiency of the equivalent ducted propellers they replace. To provide proof of this, three different RIM-driven thrusters (one four-bladed, two six-bladed) are analyzed and compared to a reference decelerating ducted propeller delivering the same thrust at identical functioning conditions. The evolution of the trailing wakes of the propulsors, the role of the leakage vortex, and the nozzle wake destabilizing effects, are highlighted, and the superior performances of RIM-driven thrusters, in terms of less intense tip vortices, are discussed. Near-field pressure pulses, as a measure of the radiated noise, are compared, showing a reduction in the sound pressure levels of the selected RIM propulsors up to 15 dB (non-cavitating case) with respect to the reference ducted propeller. Full article
(This article belongs to the Special Issue Evolutional Marine Propulsion System Design for the Carbon Neutral World)
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23 pages, 9975 KiB  
Article
Pre-Swirl Ducts, Pre-Swirl Fins and Wake-Equalizing Ducts for the DTC Hull: Design and Scale Effects
by Giacomo Nicorelli, Diego Villa and Stefano Gaggero
J. Mar. Sci. Eng. 2023, 11(5), 1032; https://doi.org/10.3390/jmse11051032 - 12 May 2023
Cited by 2 | Viewed by 2627
Abstract
A pre-swirl fin (PSF), pre-swirl duct (PSD) and wake-equalizing duct (WED) energy-saving devices (ESD) are designed for the Duisburg Test Case (DTC). To this aim, a simulation-based design optimization method, combining RANSE analyses (ship resistance) with BEM calculations (unsteady propeller performances) in a [...] Read more.
A pre-swirl fin (PSF), pre-swirl duct (PSD) and wake-equalizing duct (WED) energy-saving devices (ESD) are designed for the Duisburg Test Case (DTC). To this aim, a simulation-based design optimization method, combining RANSE analyses (ship resistance) with BEM calculations (unsteady propeller performances) in a simplified optimization process realized through a parametric description of ESD geometries, was employed. Fully resolved RANSE analyses were used to validate the outcomes of this affordable design process, which identifies devices capable of saving energy in the delivered power for this type of challenging test case by up to 2.6%. Comparisons with model-scale calculations, furthermore, permit us to discuss the influence of each appendage in different flowfields (model- and full-scale, as well as under the action of the simplified or the resolved propeller) and the reliability of the full-scale extrapolation methods recently proposed for these types of devices. Full article
(This article belongs to the Special Issue Evolutional Marine Propulsion System Design for the Carbon Neutral World)
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