Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy

Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy

This paper is aimed at modification of calculation algorithm used in data processing from PIV (Particle Image Velocimetry) method. The modification of standard Multi-step correlation algorithm is based on imaging the centre of mass of the interrogation area to define the initial point of the respec...

Full description

Bibliographic Details
Main Authors: Kouba Jan, Novotný Jan, Nožička Jiří
Format: Article
Language:English
Published: EDP Sciences 2014-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20146702057
id doaj-2e097278e0f04758b89b5eca94f02096
record_format Article
spelling doaj-2e097278e0f04758b89b5eca94f020962021-08-02T11:55:13ZengEDP SciencesEPJ Web of Conferences2100-014X2014-03-01670205710.1051/epjconf/20146702057epjconf_efm-13_02057Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracyKouba Jan0Novotný JanNožička Jiří1Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Fluid Dynamics and ThermodynamicsCzech Technical University in Prague, Faculty of Mechanical Engineering, Department of Fluid Dynamics and Thermodynamics This paper is aimed at modification of calculation algorithm used in data processing from PIV (Particle Image Velocimetry) method. The modification of standard Multi-step correlation algorithm is based on imaging the centre of mass of the interrogation area to define the initial point of the respective vector, instead of the geometrical centre. This paper describes the principle of initial point-vector assignment, the corresponding data processing methodology including the test track analysis. Both approaches are compared within the framework of accuracy in the conclusion. The accuracy test is performed using synthetic and real data. http://dx.doi.org/10.1051/epjconf/20146702057
collection DOAJ
language English
format Article
sources DOAJ
author Kouba Jan
Novotný Jan
Nožička Jiří
spellingShingle Kouba Jan
Novotný Jan
Nožička Jiří
Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
EPJ Web of Conferences
author_facet Kouba Jan
Novotný Jan
Nožička Jiří
author_sort Kouba Jan
title Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
title_short Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
title_full Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
title_fullStr Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
title_full_unstemmed Influence of the velocity vector base relocation to the center of mass of the interrogation area on PIV accuracy
title_sort influence of the velocity vector base relocation to the center of mass of the interrogation area on piv accuracy
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2014-03-01
description This paper is aimed at modification of calculation algorithm used in data processing from PIV (Particle Image Velocimetry) method. The modification of standard Multi-step correlation algorithm is based on imaging the centre of mass of the interrogation area to define the initial point of the respective vector, instead of the geometrical centre. This paper describes the principle of initial point-vector assignment, the corresponding data processing methodology including the test track analysis. Both approaches are compared within the framework of accuracy in the conclusion. The accuracy test is performed using synthetic and real data.
url http://dx.doi.org/10.1051/epjconf/20146702057
work_keys_str_mv AT koubajan influenceofthevelocityvectorbaserelocationtothecenterofmassoftheinterrogationareaonpivaccuracy
AT novotnyjan influenceofthevelocityvectorbaserelocationtothecenterofmassoftheinterrogationareaonpivaccuracy
AT nozickajiri influenceofthevelocityvectorbaserelocationtothecenterofmassoftheinterrogationareaonpivaccuracy
_version_ 1721232829421977600

Similar Items