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Matteo Dellacasagrande, Davide Lengani, Daniele Simoni and Marina Ubaldi
The bursting phenomenon consists in the switch of a laminar separation bubble from a short to a long configuration. In the former case, reduced effects on profile pressure distribution are typically observed with respect to the attached condition. On the...
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Ziyan Wei, Jie Li, Songxiang Tang and Zhao Yang
Flow separation is easily induced at the junctions of aircraft components, and for aircraft with T-type tails, in particular, it can lead to loss of directional stability under a small sideslip angle. In the reported study, improved delayed detached eddy...
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Chun-Yao Yang and Yi-Chih Chow
Juncture flows associated with surface-mounted obstacles can be characterized by a U-shaped tubular vortical flow known as a horseshoe vortex (HSV). Horseshoe vortices are usually detrimental to engineering applications. In order to identify a boundary g...
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Naser Al Haddabi, Konstantinos Kontis and Hossein Zare-Behtash
Cavity flows occur in a wide range of low-speed applications (Mach number ≤0.3" role="presentation">=0.3=0.3
=
0.3
), such as aircraft wheel wells, ground transportation, and pipelines. In the current study, a steady jet is forced from a cavit...
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Andrei Buzica and Christian Breitsamter
Manipulation of vortex instabilities for aerodynamic performance increase is of great interest in numerous aeronautical applications. With increasing angle of attack, the leading-edge vortex of a semi-slender delta wing becomes unsteady and eventually co...
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Shihao Zhou, Peifeng Lin, Wei Zhang and Zuchao Zhu
Flow separation is undesirable and lowers the efficiency of centrifugal impellers. In this study, the evolution characteristics of separated vortices in a centrifugal impeller are studied under the off-designed flow rate condition. Unsteady Reynolds-Aver...
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Penghao Zhang, Li Zhang, Zhongyu Wang, Shuang Chen and Zhendong Shang
An improved strain-transfer model was developed for surface-bonded sapphire-derived fiber Bragg grating sensors. In the model, the core and cladding of the fiber are separated into individual layers, unlike in conventional treatment that regards the fibe...
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Chunyu Guo, Hang Guo, Jian Hu, Kewei Song, Weipeng Zhang and Wei Wang
The deformation of the cylinder has been proved to greatly reduce the fluctuation of lift and the vortex-induced vibration. In this article, a new form of deformation mode for the smooth cylinder is proposed in order to reduce the vortex-induced vibratio...
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Andreas Gross and Hermann F. Fasel
When a laminar boundary layer is subjected to an adverse pressure gradient, laminar separation bubbles can occur. At low Reynolds numbers, the bubble size can be substantial, and the aerodynamic performance can be reduced considerably. At higher Reynolds...
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Brian R. McAuliffe and Metin I. Yaras
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