I. Introduction eroacoustic noise generated by turbofan engines especially during take-off
conditions, when engines are operating at high throttle settings, is still a major noise source …

The interaction of wakes generated by a fan with the outlet guide vanes occurring at the
blade-passing frequency and its harmonics is mainly responsible for aeroengine tonal noise …

为探索倾斜/后掠静子叶片对风扇单音噪声的降噪机理并指导低噪声风扇的设计,
采用基于三维黏性非定常雷诺平均数值模拟(URANS) 和管道声类比理论(Ducted Acoustic …

A new time domain methodology for Computational Aeroacoustics (CAA) is proposed. The
time domain wave packet (TDWP) method employs a temporally compact broadband pulse …

静转子相互作用线谱噪声是亚音速轴流风扇主要噪声源之一, 快速预报该噪声对风扇设计初期的
叶片选型和参数设计具有重要意义. 因此在叶栅响应函数理论的基础上考虑静转子叶片的相互 …

The present work discusses modifications to the stochastic Fast Random Particle Mesh
(FRPM) method featuring both tonal and broadband noise sources. The technique relies on …

In modern turbofan engines powering commercial aircraft, the fan is becoming the dominant
source of noise at takeoff and landing. Understanding and modeling of the fan noise source …

Turbo machines such as fans, compressors and turbines are among the most important
sources of aeroacoustic noise. Typically, the aeroacoustic interaction between the rotor and …

Several noise reduction programs as the Advanced Subsonic Technology (AST) and the
Quiet Aircraft Technology (QAT) in the United States and Visions 2020 in Europe, have set …

The prediction of broadband noise radiating from realistic turbulent flows interacting with
complex geometries, using nonlinear time-domain algorithms, is still in infancy. The main …