THE unsteadiness and complexity of the flowfields around helicopter rotor blades pose
significant challenges for present aerodynamic investigations, as illustrated in Fig. 1. The …

An optimization method of helicopter rotor hovering performance is proposed, which is
mainly carried out by means of CFD simulation. This method can be used to obtain the …

A computational fluid dynamics (CFD) trimming method based on wind tunnel and flight test
data is proposed. Aerodynamic coefficients obtained for a helicopter rotor using this method …

为了研究旋翼桨尖涡涡核结构, 采用粒子图像测速(PIV) 技术对4m 直径桨尖开孔旋翼在悬停状态
的桨尖涡流场进行了详细测量, 获得了旋翼145 方位角处桨尖涡附近流场的速度分布 …

In this paper, a computational fluid dynamics (CFD) simulation method based on the
polyhedral nested grid is developed. By comparing the simulation and test results of the …

Vortex intensification plays an important role in a wide range of flows of engineering interest.
One scenario of interest is when a streamwise vortex passes through the contracting …

The advancement of flow measurement techniques continues to extend experimental
boundaries and thus significantly contributes to improving our understanding of both basic …

A study was conducted to investigate the placement of stress and its phonetic cues on the
American speakers and Mandarin speakers. The study also focused on how learning …

The vortices produced by helicopter rotor blades dominate the aerodynamics of the rotor
wake. Their interactions with the rotor blades cause sound and structural vibrations and …

Some of the new developments made in vortex dynamics that are relevant to the sound
produced by intense concentrated eddies are discussed. Most of the contributions consider …