Application of PIV (particle image velocimetry) to long-range transonic flow measurements

1995 ◽  
Author(s):  
Peter J. Bryanston-Cross
Keyword(s):  
Particle Image Velocimetry ◽  
Long Range ◽  
Transonic Flow ◽  
Particle Image ◽  
Flow Measurements ◽  
Image Velocimetry

scholarly journals Flow Measurements in a Blood-Perfused Collagen Vessel Using X-Ray Micro-Particle Image Velocimetry

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e81198 ◽  
Author(s):  
Elizabeth Antoine ◽  
Cara Buchanan ◽  
Kamel Fezzaa ◽  
Wah-Keat Lee ◽  
M. Nichole Rylander ◽  
...  
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Flow Measurements ◽  
X Ray ◽  
Micro Particle Image Velocimetry ◽  
Image Velocimetry

Infrared Micro-Particle Image Velocimetry of Fluid Flow in Silicon-Based Microdevices

Volume 4 ◽  
2004 ◽  
Author(s):  
Dong Liu ◽  
Suresh V. Garimella ◽  
Steve T. Wereley
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Capillary Tube ◽  
Surface Flow ◽  
Mems Devices ◽  
Flow Measurements ◽  
Micro Particle Image Velocimetry ◽  
Micro Piv ◽  
Image Velocimetry ◽  
Silicon Based

A non-intrusive diagnostic technique, infrared micro-particle image velocimetry (IR-PIV), is developed for measuring flow fields within MEMS devices with micron-scale resolution. This technique capitalizes on the transparency of silicon in the infrared region, and overcomes the limitation posed by the lack of optical access with visible light to sub-surface flow in silicon-based micro-structures. Experiments with laminar flow of water in a circular micro-capillary tube of hydraulic diameter 255 μm demonstrate the efficacy of this technique. The experimental measurements agree very well with velocity profiles predicted from laminar theory. Cross-correlation and auto-correlation algorithms are employed to measure very-low and moderate-to-high velocities, respectively; the former approach is suitable for biomedical applications while the latter would be needed for measurements in electronics cooling. The results indicate that the IR-PIV technique effectively extends the application of regular micro-PIV techniques, and has great potential for flow measurements in silicon-based microdevices.

Particle image velocimetry: simultaneous two-phase flow measurements

1996 ◽  
Vol 7 (9) ◽  
pp. 1270-1280 ◽  
Author(s):  
M L Jakobsen ◽  
W J Easson ◽  
C A Greated ◽  
D H Glass
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Measurements ◽  
Image Velocimetry

Stereo three-dimensional particle image velocimetry measurement and aerodynamic force analysis of non-spinning soccer balls

2020 ◽  
Vol 234 (2) ◽  
pp. 146-153 ◽  
Author(s):  
Masaki Hiratsuka ◽  
Shinichiro Ito ◽  
Keita Miyasaka ◽  
Akihisa Konno
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Aerodynamic Force ◽  
Three Dimensional ◽  
Jet Flow ◽  
Flight Path ◽  
Wake Flow ◽  
Force Measurements ◽  
Flow Measurements ◽  
Image Velocimetry

A knuckle shot, resulting from non-spinning kicking, is an essential technique in soccer. The irregular flight path of the knuckle shot is caused by the aerodynamic force from the three-dimensional twin vortices generated in the wake behind the ball. However, the detailed behavior of the twin vortices and relation between the jet flow and the acting forces on the balls is still not understood. In addition, a more thorough understanding of the effect of ball panels on the formation of twin vortices and jet flow is important to develop balls with high controllability. To study the effect of the ball panel shape on the flight path, stereo three-dimensional particle image velocimetry wake flow measurements and synchronized force measurements were performed on various soccer balls. It was confirmed that the aerodynamic force on the ball is produced by the jet flow generated by the vortices in the wake flow. The directions of the force followed the changes of the jet flow, and the magnitude of the force was strongly associated with the flow rate of the jet. Moreover, the shape of the ball panels, especially the groove volume, determines the critical Reynolds number and the fluttering of the balls.

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