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Selected Papers from the Seventh International Symposium on Marine Propulsors
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Selected Papers from the Seventh International Symposium on Marine Propulsors

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 June 2023) | Viewed by 4927

Special Issue Editor

Prof. Dr. Kourosh Koushan

E-Mail Website
Guest Editor
SINTEF Ocean and Department of Marine Technology, Norwegian University of Science and Technology, Otto Nielsens vei 10, N-7491 Trondheim, Norway
Interests: propulsors (propellers, thrusters, waterjets); cavitation; ventilation of propulsors; rotating marine renewable energy devices
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Marine propulsors are key components of the many thousand ships operating in oceans, lakes, and rivers around the world. The performance of propulsors is vital to the efficiency, environmental impact, safety, and comfort of the ships. New types of propulsors, with electric drive and flexible blades, require new knowledge and improved tools. Innovative propulsor types using renewable energy from waves or winds are also becoming commercialized. Rotating marine renewable devices are used to gain energy from the water current. The improvement in computational fluid dynamics opens up new opportunities for advanced design and performance prediction, and new instrumentation and data collection techniques facilitate more advanced experimental techniques. This Special Issue of the Journal of Marine Science and Engineering is devoted to bringing the latest developments in research and technical developments regarding marine propulsors and marine rotating renewable devices to the forefront of both academia and industry. This Special Issue includes extended selected papers from the 7th International Symposium on Marine Propulsors as well as other contributions.

Prof. Dr. Kourosh Koushan
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

  • propellers
  • waterjets
  • unconventional propulsors (azimuthing, SPP, rim drive, etc.)
  • cavitation
  • noise and vibration
  • propulsor dynamics
  • propulsion in seaways
  • propulsion in off-design conditions
  • energy-saving devices
  • renewable-energy-based propulsors

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Published Papers (2 papers)

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Research

25 pages, 17259 KiB  
Article
A Calibration Study with CFD Methodology for Self-Propulsion Simulations at Ship Scale
by Vladimir Krasilnikov, Vegard Slettahjell Skjefstad, Kourosh Koushan and Hans Jørgen Rambech
J. Mar. Sci. Eng. 2023, 11(7), 1342; https://doi.org/10.3390/jmse11071342 - 30 Jun 2023
Cited by 2 | Viewed by 2355
Abstract
This paper summarises the main findings from the full-scale Computational Fluid Dynamics (CFD) analyses conducted at SINTEF Ocean on the case of MV REGAL, which is one of the benchmark vessels studied in the ongoing joint industry project JoRes. The numerical approach is [...] Read more.
This paper summarises the main findings from the full-scale Computational Fluid Dynamics (CFD) analyses conducted at SINTEF Ocean on the case of MV REGAL, which is one of the benchmark vessels studied in the ongoing joint industry project JoRes. The numerical approach is described in detail, and comparative results are presented regarding the propeller open water characteristics, ship towing resistance, and ship self-propulsion performance. The focus of numerical investigations is on the assessment of the existing simulation best practises applied to a ship-scale case in a blind simulation exercise and the performance thereof with different turbulence modelling methods. The results are compared directly with full-scale performance predictions based on model tests conducted at SINTEF Ocean and sea trials data obtained in the JoRes project. Full article
(This article belongs to the Special Issue Selected Papers from the Seventh International Symposium on Marine Propulsors)
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21 pages, 11458 KiB  
Article
Study on the Influence of Gradient Wind on the Aerodynamic Characteristics of a Two-Element Wingsail for Ship-Assisted Propulsion
by Chen Li, Hongming Wang and Peiting Sun
J. Mar. Sci. Eng. 2023, 11(1), 134; https://doi.org/10.3390/jmse11010134 - 6 Jan 2023
Cited by 4 | Viewed by 1873
Abstract
It is well known that sail-assisted propulsion works under gradient wind conditions in the atmospheric boundary layer, and is an energy-saving device for fuel consumption. In order to study the aerodynamic characteristics of a wingsail in the atmospheric boundary layer above sea level, [...] Read more.
It is well known that sail-assisted propulsion works under gradient wind conditions in the atmospheric boundary layer, and is an energy-saving device for fuel consumption. In order to study the aerodynamic characteristics of a wingsail in the atmospheric boundary layer above sea level, a transition SST turbulence model was used for numerical simulation of the wingsail with uniform and gradient wind conditions. We concluded that gradient wind conditions can delay the stall caused by an increased angle of attack. This is because the airflow on the suction surface of the wingsail in the spanwise direction exerts an acceleration towards the top of the wingsail. At the same time, supplementary airflow compresses the separated vortex, thus delaying the stall of the two-element wingsail. Under gradient wind conditions, the flow separation of the wingsail develops rapidly in the stall angles. Once a flat separation vortex is formed at the trailing edge of the wingsail, with the slow increase of flap deflection angle, flow separation rapidly expands and a deep stall occurs. Therefore, a small change of the flap deflection angle in the near-stall angles may lead to a deep stall of the wingsail, which should be avoided in engineering applications. Finally, the influence of the average speed of the gradient wind on the aerodynamic performance of the two-element wingsail was analyzed. Full article
(This article belongs to the Special Issue Selected Papers from the Seventh International Symposium on Marine Propulsors)
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