Phase-locking particle image velocimetry measurements of acoustic-driven flow interactions between tandem deep cavities

2020 ◽  
Vol 32 (12) ◽  
pp. 125115
Author(s):  
Peng Wang ◽  
Yifan Deng ◽  
Qian Mao ◽  
Chuangxin He ◽  
Yingzheng Liu
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Phase Locking ◽  
Image Velocimetry ◽  
Flow Interactions ◽  
Deep Cavities

scholarly journals Flow interactions with an aquatic macrophyte: a field study using stereoscopic particle image velocimetry

2019 ◽  
Vol 4 (2) ◽  
pp. 113-130 ◽  
Author(s):  
H. J. Biggs ◽  
V. I. Nikora ◽  
C. N. Gibbins ◽  
S. M. Cameron ◽  
K. Papadopoulos ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Field Study ◽  
Particle Image ◽  
Aquatic Macrophyte ◽  
Stereoscopic Particle Image Velocimetry ◽  
Image Velocimetry ◽  
Flow Interactions

Influence of blade passing on the stator wake in a transonic turbine stage investigated by particle image velocimetry and laser vibrometry

2003 ◽  
Vol 217 (4) ◽  
pp. 385-391 ◽  
Author(s):  
J Woisetschläger ◽  
H Lang ◽  
B Hampel ◽  
E Göttlich ◽  
F Heitmeir
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Phase Locking ◽  
Axial Flow ◽  
Density Fluctuations ◽  
Laser Vibrometry ◽  
Turbine Stage ◽  
Flow Test ◽  
Image Velocimetry ◽  
Transonic Turbine

The aerodynamic behaviour of stator and rotor interaction in axial flow turbines is complex and highly unsteady. Particle image velocimetry (PIV) and laser vibrometry (LV) were used to investigate the phenomena observed in a transonic turbine stage operated continuously in a cold-flow test rig. While LV gave basic information on the frequency behaviour of the density fluctuations in the stator wake, stereoscopic PIV was used for investigations of the flowfield vorticity during rotor blade passing. Phase locking of the vortex shedding to the seventh and eighth harmonics of the blade passing frequency was observed.

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