哈尔滨工程大学学报2026，Vol.47Issue(2)：327-335,9.DOI:10.11990/jheu.202410005
基于声扰动方程的旋转圆柱流声数值研究
Numerical study of rotating cylindrical flow-induced noise based on acoustic perturbation equation
摘要
Abstract
A hybrid acoustic prediction method for rotating boundaries is proposed for the problem of noise bypass-ing a rotating cylinder at low Reynolds number.The finite volume method with acoustic perturbation equation was used to numerically simulate the rotating cylindrical flow-induced noise around a rotating cylinder with Reynolds number Re=160,and the rotational effect of the wall was dealt with by using a slip mesh in combination with an arbitrarily matched interface technique to compute the flow structure and acoustic field distributions for different ro-tational speed ratios.The results show that the simulation results of the rotating cylindrical flow field and acoustic field match the calculated values from direct numerical simulations in the literature,which verifies the accuracy of the hybrid acoustic prediction method;As the rotational speed ratio increases,the mean value of drag coefficient decreases and then increases,and the mean value of lift coefficient increases monotonically.The amplitude of lift resistance fluctuations is significantly higher in the unilateral vortex state compared to the periodic vortex shedding state;The far-field radiated sound pressure level of the periodic vortex shedding state increases and then decreases with the increase of the rotational speed ratio,and the overall acoustic directivity shows a dipole distribution.The far-field radiated sound pressure level rises sharply in the unilateral eddy-dynamic state,and the acoustic directiv-ity is converted to an eccentric circular distribution.关键词
圆柱绕流/低雷诺数/旋转效应/气动噪声/声扰动方程/混合声学计算/滑移网格/有限体积法Key words
flow around cylinder/low Reynolds number/rotational effects/aerodynamic noise/acoustic perturba-tion equations/hybrid aeroacoustic computation/sliding mesh/finite volume method分类
数理科学引用本文复制引用
原野,肖友洪,卢华兵..基于声扰动方程的旋转圆柱流声数值研究[J].哈尔滨工程大学学报,2026,47(2):327-335,9.基金项目
中国航发四川燃气涡轮研究院稳定支持项目(GJCZ-1101-02). （GJCZ-1101-02）
