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Proceedings Paper

PIV: a numerical simulation
Author(s): Antonio Cenedese; P. Monti; M. Sallusti
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Paper Abstract

A numerical simulation of particle image velocimetry (PIV) is developed in order to evaluate the effectiveness of different methods for the analysis of a multi-exposed image (Fourier transform, auto-correlation and tracking). The trajectory of each particle is obtained by solving a modified Langevin equation in a three-dimensional limited field in which the statistical characteristics of the flow are assigned. In this way it is possible to obtain the position of the baricenters of the seeding particles at prefixed time intervals. A plane section through the field simulates a light sheet on which is obtained, by numerical methods, a multi- exposed image. The analysis is performed with a different number of seeding particles and with different noise levels in order to obtain the effectiveness threshold of each tested method.

Paper Details

Date Published: 6 August 1993
PDF: 8 pages
Proc. SPIE 2052, Fifth International Conference on Laser Anemometry: Advances and Applications, (6 August 1993); doi: 10.1117/12.150542
Show Author Affiliations
Antonio Cenedese, Univ. of Rome "La Sapienza" (Italy)
P. Monti, Univ. of Rome "La Sapienza" (Italy)
M. Sallusti, Univ. of Rome "La Sapienza" (Italy)

Published in SPIE Proceedings Vol. 2052:
Fifth International Conference on Laser Anemometry: Advances and Applications
J. M. Bessem; R. Booij; H. W. H. E. Godefroy; P. J. de Groot; K. Krishna Prasad; F. F. M. de Mul; E. J. Nijhof, Editor(s)

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