Abstract The Delayed Detached Eddy Simulation (DDES) and Ffowcs Williams–Hawkings
(FW–H) analogy have been performed to describe the unsteady flow and noise-generation …

In fluid mechanics, modal decomposition, deeply intertwined with the concept of symmetry,
is an essential data analysis method. It facilitates the segmentation of parameters such as …

This paper reports a study of the sound emitted by a slat of a two-dimensional three-element
MD30P30N airfoil, on which a two-dimensional excrescence was installed to represent a …

In this study, dense zinc oxide nanowires were electrochemically synthesized on sputtered
zinc oxide buffer layers substrates using a solution of zinc chloride as a precursor. The …

Slat noise experiments are sometimes performed to provide data for the validation of
numerical procedures. Under such circumstances, closed-section wind-tunnels, in contrast …

低频窄带噪声是缝翼噪声的重要组成部分, 研究其产生机制是缝翼噪声抑制的重要途径.
基于30P⁃ 30N 多段翼的瞬态流场分析, 采用本征正交分解(POD) 和动态模态分解(DMD) …

Low-frequency narrow-band noise is one of the important components in the slat noise.
Based on the transient flow field analysis for multi-element airfoil 30P-30N, the main mode …

A the lift increasing during take-off and landing maneuvers, the slat and flap high-lift devices,
are present in most commercial airplanes. This devices are responsible for a significant part …

The development on Environmental Regulations related to aircraft noise propagated to the
vicinity of airports forced the industry to investigate the noise sources and look for …

Two-dimensional high-lift airfoil models noise investigations are normally conducted in
closed-section wind-tunnels owing to their convenience in comparison to open-section ones …