Results 251 to 260 of about 158,194 (321)

Prandtl second optimal wing: model design and testing with near wake PIV, and 3-D simulation

, 2018
Grégoire Winckelmans, Jonathan Toussaint, Philippe Chatelain, Denis-Gabriel Caprace   +3 more
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PIV Web Visualization System toward PIV visualization grid

Journal of Visualization, 2003
To visualize the simulation and experimental data, the fluid dynamics scientists and engineers have to possess a powerful visualization engine with CG package in their laboratories. We developed a Problem Solving Environment (PSE) system called "PIV Web Visualization System" to solve this obstacle, using computational grid common service tool "Globus",
Y. Kadooka, H. Kobashi, J. W. Choi, Y. H. Lee, Y. Tago   +4 more
openaire   +1 more source

Direct comparison of 2D PIV and stereoscopic PIV measurements

Measurement Science and Technology, 2002
A stereoscopic particle image velocimetry (PIV) measurement system based on the translation configuration was developed and applied to the flow behind a forward-swept axial-fan with five blades in a water tank. The 3D calibration procedure was employed to compensate the distortion and refraction of particle images.
Yoon, JH, Lee, SJ
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Comparison of intracranial aneurysm flow quantification techniques: standard PIV vs stereoscopic PIV vs tomographic PIV vs phase-contrast MRI vs CFD

Journal of NeuroInterventional Surgery, 2018
Image-based hemodynamic simulations to assess the rupture risk or improve the treatment planning of intracranial aneurysms have become popular recently.
C. Roloff, D. Stucht, O. Beuing, P. Berg
semanticscholar   +1 more source

PIV error correction

Experiments in Fluids, 2000
A non-post-interrogation method of reducing subpixel errors and eliminating spurious vectors from particle image velocimetry (PIV) results is presented. Unlike methods that rely on the accuracy or similarity of neighboring vectors, errors are eliminated before correlation information is discarded using available spatial and/or temporal data.
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Applications: Stereo PIV and Multiplane Stereo PIV

2018
The various methods of image reconstruction and calibration as described in Sect. 8.1 were applied in the measurement of the unsteady vortex ring flow field in 1995. Figure 11.125 outlines a vortex ring generator having a simple construction with very reproducible flow characteristics.
Markus Raffel, Christian E. Willert, Fulvio Scarano, Christian J. Kähler, Steven T. Wereley, Jürgen Kompenhans   +5 more
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Analysis of stereoscopic PIV measurements using synthetic PIV images

2004
This paper describes the use of a synthetic image generator (SIG) for the assessment of the precision of a stereoscopic PIV system. The geometry implemented with the SIG closely matches that of an existing stereo-PIV measurement in laminar pipe flow. The calibration procedure is simulated, which demonstrates the necessity of a careful alignment between
Petracci, A., Doorne, C. W. H., Westerweel, J., Lecordier, Bertrand   +3 more
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Error propagation dynamics of PIV-based pressure field calculation (3): what is the minimum resolvable pressure in a reconstructed field?

Experiments in Fluids, 2018
An analytical framework for the propagation of velocity errors into PIV-based pressure calculation is extended. Based on this framework, the optimal spatial resolution and the corresponding minimum field-wide error level in the calculated pressure field ...
Mingyuan Nie, J. Whitehead, Geordie Richards, Barton L. Smith, Z. Pan   +4 more
semanticscholar   +1 more source