Investigation of the effect of adaptive characteristics on non-cavitating noise for flexible propeller in non-uniform flow via the fluid-structure interaction model

IF 2.3 3区工程技术 Q2 ENGINEERING, MARINE

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI:10.1016/j.ijnaoe.2023.100541

Yo-Seb Choi , Suk-Yoon Hong , Jee-Hun Song

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引用次数: 0

Abstract

When constructing a low-noise submarine, it is crucial to consider the non-cavitating noise from the propeller. Non-cavitating noise reduction is crucial for submarine stealth and survivability. Recently, several studies have been conducted on the use of flexible propellers as a means of reducing non-cavitating noise. However, there are no studies on the use of flexible propellers with adaptive characteristics to reduce noise in wake fields. Thus, this study investigated the noise reduction effect of adaptive characteristics on non-cavitating noise for the flexible propeller in the wake field. Numerical investigations on the main propeller variables were conducted based on the proposed procedure using fluid-structure interaction and acoustic analysis models. The results were compared with those of rigid propellers to determine the possible reasons for noise reduction. Finally, the acoustic analysis results of the flexible propeller were compared with those of the rigid propeller to reveal the effectiveness of the adaptive characteristics.

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基于流固耦合模型的柔性螺旋桨非均匀流动自适应特性对非空化噪声的影响

在建造低噪声潜艇时，考虑螺旋桨的非空化噪声是至关重要的。非空化降噪对潜艇的隐身性和生存能力至关重要。最近，已经进行了一些关于使用柔性螺旋桨作为减少非空化噪声的手段的研究。然而，利用具有自适应特性的柔性螺旋桨来降低尾流场噪声的研究还很少。因此，本文研究了柔性螺旋桨尾流场中自适应特性对非空化噪声的降噪效果。利用流固耦合和声学分析模型对螺旋桨主变量进行了数值研究。结果与刚性螺旋桨的结果进行了比较，以确定可能的降噪原因。最后，将柔性螺旋桨的声学分析结果与刚性螺旋桨的声学分析结果进行了比较，以揭示自适应特性的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Naval Architecture and Ocean Engineering ENGINEERING, MARINE-

CiteScore

4.90

自引率

4.50%

发文量

审稿时长

12 months

期刊介绍： International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.