2010
Cavazzini, Giovanna; Pavesi, Giorgio; Ardizzon, Guido
Validation of an analysis method for particle image velocimetry of turbulent unsteady flows in turbomachinery Journal Article
In: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, vol. 224, iss. 5, pp. 679-689, 2010, ISSN: 09576509.
Abstract | Links | BibTeX | Tags: density function, goodness-of-fit test, particle image velocimetry, probability, probability density function, statistical analysis, Turbomachinery, unsteady flow fields
@article{pop00032,
title = {Validation of an analysis method for particle image velocimetry of turbulent unsteady flows in turbomachinery},
author = {Giovanna Cavazzini and Giorgio Pavesi and Guido Ardizzon},
url = {http://pia.sagepub.com/content/224/5/679.abstract http://journals.sagepub.com/doi/10.1243/09576509JPE889},
doi = {10.1243/09576509JPE889},
issn = {09576509},
year = {2010},
date = {2010-01-01},
urldate = {2010-01-01},
journal = {Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy},
volume = {224},
issue = {5},
pages = {679-689},
publisher = {pia.sagepub.com},
abstract = {This paper presents a post-processing analysis that combines several statistical tools to validate experimental results in a particle image velocimetry analysis on unsteady flows in the turbomachinery field. The method was developed in three steps: verification of the number of acquired images, verification ofthe meaningfulness ofthe velocity averages, and identification of the zones characterized by the greatest error on the average estimation. The statistical approach allows one to identify the possible error sources, discriminating between experimental problems due to the test rig, the turbulent nature of the flow, and structures unidentifiable by a single frequency.},
keywords = {density function, goodness-of-fit test, particle image velocimetry, probability, probability density function, statistical analysis, Turbomachinery, unsteady flow fields},
pubstate = {published},
tppubtype = {article}
}
This paper presents a post-processing analysis that combines several statistical tools to validate experimental results in a particle image velocimetry analysis on unsteady flows in the turbomachinery field. The method was developed in three steps: verification of the number of acquired images, verification ofthe meaningfulness ofthe velocity averages, and identification of the zones characterized by the greatest error on the average estimation. The statistical approach allows one to identify the possible error sources, discriminating between experimental problems due to the test rig, the turbulent nature of the flow, and structures unidentifiable by a single frequency.
2006
Caignaert, Guy; Ardizzon, Guido; Pavesi, Giorgio
Analysis of rotor-stator interactions effects within the vaned diffuser of a radial flow pump Proceedings Article
In: 23rd IAHR Symposium - Yokohama, pp. 1-10, 2006.
Abstract | BibTeX | Tags: Numerical simulation, particle image velocimetry, radial flow pump, Vaned diffuser
@inproceedings{Caignaert2006,
title = {Analysis of rotor-stator interactions effects within the vaned diffuser of a radial flow pump},
author = {Guy Caignaert and Guido Ardizzon and Giorgio Pavesi},
year = {2006},
date = {2006-01-01},
urldate = {2006-01-01},
booktitle = {23rd IAHR Symposium - Yokohama},
volume = {1},
issue = {October},
pages = {1-10},
abstract = {The paper refers to the analysis of interactions between the impeller and the vaned diffuser of a radial flow pump. It mainly focuses on the flow within one blade passage of a vaned dif- fuser in various operating conditions. 2D/2C PIV results within one blade passage of a dif- fuser, in various measuring planes in the hub to shroud direction, for various relative positions of the impeller in the diffuser frame, and for one operating condition, are compared to numeri- cal results obtained with help of CFX computer code.},
keywords = {Numerical simulation, particle image velocimetry, radial flow pump, Vaned diffuser},
pubstate = {published},
tppubtype = {inproceedings}
}
The paper refers to the analysis of interactions between the impeller and the vaned diffuser of a radial flow pump. It mainly focuses on the flow within one blade passage of a vaned dif- fuser in various operating conditions. 2D/2C PIV results within one blade passage of a dif- fuser, in various measuring planes in the hub to shroud direction, for various relative positions of the impeller in the diffuser frame, and for one operating condition, are compared to numeri- cal results obtained with help of CFX computer code.
