Notes on Towed Self-Propulsion Experiments with Simulated Managed Ice in Traditional Towing Tanks

Autor: José Enrique Gutiérrez-Romero, Blas Zamora-Parra, Samuel Ruiz-Capel, Jerónimo Esteve-Pérez, Alejandro López-Belchí, Pablo Romero-Tello, Antonio José Lorente-López
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Marine Science and Engineering, Vol 12, Iss 10, p 1691 (2024)
Druh dokumentu: article
ISSN: 2077-1312
DOI: 10.3390/jmse12101691
Popis: Efficiency estimation of a propeller behind a vessel’s hull while sailing through ice floes, together with the ship’s resistance to motion, is a key factor in designing the power plant and determining the safety measures of a ship. This paper encloses the results from the experiments conducted at the CEHINAV towing tank, which consisted of analyzing the influence of the concentration at the free surface of artificial blocks, simulating ice, in propeller–block interactions. Thrust and torque were measured for a towed self-propelled ship model through simulated broken ice blocks made of paraffin wax. Three block concentrations of different block sizes and three model speeds were studied during the experimentation. Open-water self-propulsion tests and artificial broken ice towed self-propulsion tests are shown and compared in this work. The most relevant observations are outlined at the end of this paper, as well as some guidelines for conducting artificial ice-towed self-propulsion tests in traditional towing tanks.
Databáze: Directory of Open Access Journals