Numerical simulation and reduction of balance valve noise based on considering quadrupole and dipole in different frequency bands

J Hou, S Li, LX Yang, D Liu, Q Zhao - Applied Acoustics, 2023 - Elsevier
The natural gas balance valve is an important part to control the flow of natural gas and use
it safely. When the pressure before the valve is close to the upper limit, there will be a strong …

Multi-field coupling prediction for improving aeroacoustic performance of muffler based on LES and FW-H acoustic analogy methods

H Guo, YS Wang, F Zhu, NN Liu… - International Journal of …, 2021 - journals.sagepub.com
Based on the large eddy simulation (LES) and Ffowcs Williams and Hawkings (FW-H)
equation, a multi-field coupling method is presented for aeroacoustic prediction of a muffler …

Numerical Study on Aerodynamic Noise Reduction in Passenger Car with Fender Shape Optimization

D Jiao, H Zhou, T Huang, W Zhang - Symmetry, 2024 - mdpi.com
Despite the rapid development of vehicle intelligent technology, the aerodynamic noise
problem of internal combustion engine vehicles and pure electric vehicles at high speed has …

Analysis of flow field and aerodynamic noise of marine gas turbine air intake system

Y Luan, L Yan, T Sun, P Zunino - The Journal of the Acoustical Society …, 2023 - pubs.aip.org
The aerodynamic noise of air intake system is one of the main noise sources of a gas turbine
power plant. In this study, large eddy simulation in conjunction with acoustic finite element …

汽车急加速进气噪声的试验测试与分析

刘志恩, 黄涛, 邵炯炀, 郑卿卿, 杜松泽, 李秋悦… - 汽车 …, 2019 - qichegongcheng.com
汽车的进气噪声能够直接影响车内的噪声水平和声品质. 在车内动力感声品质研究过程中,
需要借助进气噪声能量增强车内噪声的动力感, 在发动机半消声室单纯测试进气噪声的传统方法 …

发动机进气噪声气动声源特性分析

刘军, 苏醒, 马家义, 杨志浩, 张惠威, 张宁 - 噪声与振动控制, 2023 - nvc.sjtu.edu.cn
目前主要通过进气空滤器对发动机进气系统的气动噪声进行降噪, 而通过对气动声源的研究进行
源头降噪具有一定实际意义. 但由于进气道-气门-燃烧室等的特殊性, 难以测量声源的声学状况 …

Numerical Analysis of Flow Field and Aerodynamic Noise in Intake Structure

H Liu, D Sun, J Sun, J He - Journal of Physics: Conference …, 2023 - iopscience.iop.org
The CFD numerical simulation was used to simulate the flow field and sound field of the
intake system, combined with the acoustic finite element method. Based on the Lighthill …

Data Acquisition of Ambulatory Air Pressure Test Device Based on Fuzzy Algorithm

H Zhang - Journal of Testing and Evaluation, 2023 - asmedigitalcollection.asme.org
The data of air pressure test device have different resistive currents under different load
strengths, so it is necessary to collect the data of locomotive air pressure test device …

Analysis of Aerodynamic Sound Source Characteristics of Engine Intake Noise

LIU Jun, W Su, MA Jia-Yi, Y Zhi-Hao… - Noise and Vibration …, 2023 - nvc.sjtu.edu.cn
目前主要通过进气空滤器对发动机进气系统的气动噪声进行降噪, 而通过对气动声源的研究进行
源头降噪具有一定实际意义. 但由于进气道-气门-燃烧室等的特殊性, 难以测量声源的声学状况 …

[引用][C] 重型车空气滤清器前进气道的流场分析

程家磊, 钱付平, 魏舒婷, 唐莲花, 姜荣贺, 肖鹏程 - 安徽工业大学学报(自然科学版), 2018