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Imam Hossein University
Abstract: (25 Views)
One of the main sources of noise generation from marine vehicles is propellers. The noise generated by propellers can lead to identify by detection systems and have negative effects on marine ecosystems. Researchers have investigated various methods to reduce the noise of marine propellers. However, what is important in practice is the simultaneous reduction of noise with an increase in propeller efficiency, which has received less attention. In this paper, while investigating various geometric parameters in order to achieve an optimal noise-reduced propeller, the increase in propeller efficiency is also addressed. Numerical simulations have been conducted using computational fluid dynamics (CFD) based on the finite volume method and the STAR-CCM+ software. To validate the hydroacoustic and hydrodynamic simulations, a conventional propeller with available data was utilized. The results of this study indicate that the high-skew propeller, after the optimization process, under equal operating conditions, achieved a 1.95% increase in efficiency and a 5.3 dB reduction in noise at the first blade passing frequency compared to the conventional propeller
Keywords: Reducing propeller noise, Hydroacoustic, Increasing efficiency, Taguchi, high skew propeller
Type of Study: Research Paper |
Subject:
Ship Hydrodynamic
Received: 2024/12/21 | Accepted: 2025/06/17
Received: 2024/12/21 | Accepted: 2025/06/17
فایل صوتی چکیده مقاله [MP3 1817 KB] (1 Download)
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
International Journal of Maritime Technology is licensed under a
Creative Commons Attribution-NonCommercial 4.0 International License.