摘要
邮轮阳台区域风致气动噪声会影响乘客居住体验。为评估受风致气动噪声影响的邮轮不同位置阳台房的声环境质量,采用雷诺平均方法和宽频带噪声源模型对整船阳台区域的气动噪声源进行数值模拟。首先根据风洞试验验证计算方法的准确性和网格无关性,随后计算分析了不同风向和风速工况下阳台区域压力、偶极子和四极子声功率级分布。研究表明,由于流场局部扰动,首部低层甲板、阳台隔板和栏杆等位置是噪声重点产生区域,且偶极子声源对总噪声贡献更加显著。研究结果可帮助邮轮设计者识别阳台区域的主要噪声源,为邮轮降噪设计提供依据。
The wind-induced aerodynamic noise in the balcony areas of cruise ships can influence passengers'living experience.In order to assess the acoustic environment quality of different locations within balcony cabins considering the influence of aerodynamic noise,numerical simulations of the entire ship's balcony area were conducted using the RANS method and a wideband noise source model.Initially,the accuracy and grid independence of the computational method were validated through wind tunnel experiments.Subsequently,pressure distributions,as well as dipole and quadrupole sound power levels in balcony areas under different wind directions and speeds,were computed and analyzed.The study reveals that locations such as the forward lower deck,balcony partitions,and railings become primary areas of noise generation due to local flow disturbances.Additionally,dipole sources contribute more significantly to the overall noise level.These research findings will assist cruise ship designers to identify primary noise sources in balcony areas,and provide a basis for noise reduction design of cruise ships.
作者
刘子洋
马丽
甘进
朱玥
冯喜良
吴卫国
LIU Ziyang;MA Li;GAN Jin;ZHU Yue;FENG Xiliang;WU Weiguo(Key Laboratory of High Performance Ship Technology,Ministry of Education,Wuhan University of Technology,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Green&Smart River-Sea-Going Ship,Cruise and Yacht Research Center,Wuhan University of Technology,Wuhan 430063,China)
出处
《中国造船》
EI
CSCD
北大核心
2024年第5期172-186,共15页
Shipbuilding of China
关键词
大型邮轮
风致气动噪声
阳台区域
宽频带噪声源模型
声功率级
large cruise ship
wind-induced aerodynamic noise
balcony area
wide-band noise source model
sound powerlevel
