Axial fans are widely used in the aerospace field, and new regulations and environmental
concerns are prompting manufacturers to design efficient low-noise axial fans. The …

The exact frequency domain solutions of the noise for rotating point sources are extended to
acoustic modal domain. Moreover, the modal analysis method from the aerodynamic …

In this paper, an acoustic pressure gradient formula capable of accounting for constant
uniform flow effects is suggested. Acoustic pressure gradient calculation is key for acoustic …

Acoustic and vortical disturbances in uniform mean flow bounded with solid surfaces are
investigated in this paper. A convective vector wave equation and a convection equation that …

The prediction of near field acoustic velocity is necessary when using equivalent source
method and evaluating multi acoustic fields problem. According to the idea of acoustic …

This paper presents a frequency-domain method to compute noise radiated from the rotating
source and scattered by the surface, where both the acoustic pressure and acoustic velocity …

Visualization of acoustic pressure and acoustic velocity field and computation of acoustic
power are meaningful to investigate noise radiation and propagation mechanism of …

采用理论解析和数值计算方法研究均匀流中声学速度预测的时域解析公式.
对基于可渗透面原理的声学速度预测, 理论分析了对流矢量波动方程的右端源项 …

An analytical acoustic vector formulation is meaningful to visualize acoustic energy radiating
from sources and to predict sound scattered by surfaces. This paper presents a vector wave …

This paper presents an analytic time-domain formulation for acoustic pressure gradient
prediction in a moving medium, which has significant application potential in evaluating the …