Stereoscopic PIV Measurements of Swirl Distortion on a Full-Scale Turbofan Engine Inlet

2014 ◽  
Author(s):  
Michael Nelson ◽  
Kevin T. Lowe ◽  
Walter F. O'Brien ◽  
Kevin M. Hoopes
Keyword(s):  
Full Scale ◽  
Turbofan Engine ◽  
Piv Measurements ◽  
Stereoscopic Piv

scholarly journals Stereoscopic PIV measurements using low-cost action cameras

2021 ◽  
Vol 62 (3) ◽  
Author(s):  
Theo Käufer ◽  
Jörg König ◽  
Christian Cierpka
Keyword(s):  
Continuous Wave ◽  
Low Cost ◽  
Frame Rate ◽  
Processing Scheme ◽  
Piv Measurements ◽  
Stereoscopic Piv ◽  
Cost Action ◽  
Image Velocimetry ◽  
Frequency Generator ◽  
Educational Applications

Abstract Recently, large progress was made in the development towards low-cost PIV (Particle Image Velocimetry) for industrial and educational applications. This paper presents the use of two low-cost action cameras for stereoscopic planar PIV. A continuous wave laser or alternatively an LED was used for illumination and pulsed by a frequency generator. A slight detuning of the light pulsation and camera frame rate minimizes systematic errors by the rolling shutter effect and allows for the synchronization of both cameras by postprocessing without the need of hardware synchronization. The setup was successfully qualified on a rotating particle pattern in a planar and stereoscopic configuration as well as on the jet of an aquarium pump. Since action cameras are intended to be used at outdoor activities, they are small, very robust and work autarkic. In conjunction with the synchronization and image pre-processing scheme presented herein, those cameras enable stereoscopic PIV in harsh environments and even on moving experiments. Graphic abstract

0907 Stereoscopic PIV Measurements of Magnus Wind Turbines with Spiral Fins

2012 ◽  
Vol 2012 (0) ◽  
pp. 345-346
Author(s):  
Hiroyuki KATO ◽  
Shunsuke KOIKE ◽  
Kazuyuki NAKAKITA ◽  
Takeshi ITO ◽  
Tatsuro SIOHARA ◽  
...  
Keyword(s):  
Wind Turbines ◽  
Piv Measurements ◽  
Stereoscopic Piv

PIV Measurements of Velocities over Full-Scale Ripples in Oscillatory Flow

2006 ◽  
Author(s):  
Tom O'Donoghue ◽  
Jeffrey S. Doucette ◽  
Jebbe J. van der Werf ◽  
Jan S. Ribberink
Keyword(s):  
Oscillatory Flow ◽  
Full Scale ◽  
Piv Measurements

scholarly journals Stereoscopic PIV measurements of swirling flow entering a catalyst substrate

2008 ◽  
Vol 32 (8) ◽  
pp. 1590-1596 ◽  
Author(s):  
T. Persoons ◽  
M. Vanierschot ◽  
E. Van den Bulck
Keyword(s):  
Swirling Flow ◽  
Piv Measurements ◽  
Stereoscopic Piv

Full-scale total wake field PIV-measurements in comparison with ANSYS CFD calculations: a contribution to a better propeller design process

2016 ◽  
Vol 22 (2) ◽  
pp. 388-400 ◽  
Author(s):  
Andre Kleinwächter ◽  
Katrin Hellwig-Rieck ◽  
Hans-Jürgen Heinke ◽  
Nils A. Damaschke
Keyword(s):  
Design Process ◽  
Full Scale ◽  
Piv Measurements ◽  
Wake Field ◽  
Propeller Design

Identifying Sources of Stereoscopic PIV Measurements Errors on Turbulent Round Jets

2007 ◽  
Author(s):  
Maja Wanstrom ◽  
William K. George ◽  
Knud Erik Meyer ◽  
Carsten Westergaard
Keyword(s):  
Experimental Data ◽  
Data Acquisition ◽  
Axisymmetric Flow ◽  
Far Field ◽  
Piv Measurements ◽  
Stereoscopic Piv ◽  
Round Jet ◽  
Round Jets ◽  
Polar Coordinate ◽  
Measurements Errors

This paper addresses some hurdles in experimental data acquisition and analysis when sampling an axisymmetric flow in Cartesian coordinates. The problems are illustrated using recent SPIV data taken in the far field of a turbulent round jet in air. Discrepancies became apparent when trying to reconstruct the polar coordinate moments from Cartesian ones, since both components of the in-plane moments of the latter must be measured to within the same relative accuracy in order to recover the axisymmetry. Various sources for the observed discrepancies are considered including differential resolution of the Cartesian components, peak-locking and misregistration in the stereoscopic recombination. The last seems to be the most important one.

Simultaneous CH–OH PLIF and stereoscopic PIV measurements of turbulent premixed flames

2005 ◽  
Vol 30 (1) ◽  
pp. 1665-1672 ◽  
Author(s):  
Mamoru Tanahashi ◽  
Shinichirou Murakami ◽  
Gyung-Min Choi ◽  
Yuichi Fukuchi ◽  
Toshio Miyauchi
Keyword(s):  
Premixed Flames ◽  
Turbulent Premixed Flames ◽  
Piv Measurements ◽  
Stereoscopic Piv ◽  
Turbulent Premixed
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