Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Initial Study on Waterjet Propulsion for Naval Vessels: Obtaining Parameters through CFD Simulations
Submission Author:
Hélio Valdevieso Catarin , SC
Co-Authors:
Hélio Valdevieso Catarin, Arthur Sena Marques, Lucas Weihmann, Andrea Piga Carboni
Presenter: Hélio Valdevieso Catarin
doi://10.26678/ABCM.COBEM2023.COB2023-0951
Abstract
The use of alternative propulsion systems to traditional propellers is currently a highly relevant topic in naval engineering, especially in the current scenario of constant search for greater energy efficiency. One of these systems is the waterjet, widely used in jet-skis and increasingly important in small high-performance vessels, and even in larger vessels where high speeds and great maneuverability are required, as is the case with military vessels. However, despite its potential advantages, this type of propulsion is very little explored in Brazil, usually restricted to use in jet-skis and a few offshore support vessels, with few initiatives for its use in small recreational boats. Therefore, this paper presents an initial study on the topic of waterjet propulsion, with the objective of obtaining the main parameters related to its operation through CFD simulations. These parameters include the force generated by the waterjet and the moment acting on its rotor, which is used to estimate the power required for the vessel that will use the waterjet. To achieve this goal, a geometry was modeled based on the available theoretical references on the topic, and this geometry was used as a basis for study and learning in the chosen CFD simulation software, in this case, the Simcenter STAR-CCM+. The results showed that the force generated by the waterjet is a significant parameter and the CFD simulations produced a relative error of 49.33% compared to results calculated by algebraic equations. This study highlights the importance of additional research on waterjet propulsion, as well as the potential to improve the accuracy of CFD simulations through the use of more advanced simulation techniques and refined modeling methods. Ultimately, a better understanding of the parameters related to waterjet operation will contribute to the development of more efficient and high-performance vessels.
Keywords
CFD, Simulation, Performance parameters, Waterjet
