Hybrid IDM Algorithm for PIV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00230569" target="_blank" >RIV/68407700:21220/15:00230569 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Hybrid IDM Algorithm for PIV
Original language description
The accuracy of the measurements using PIV method is largely dependent not only on the quality of the measured data, but also on the method of evaluation of seeding particle displacement. Our work deals with the modification of nowadays already standard algorithm based on mutual deformation of individual images and combines this algorithm with a common iterative scheme that uses mutual integer displacement of particular investigated areas. Our designed and tested algorithm enables the user to increase the accuracy of the measured data, while the computation time necessary for the analysis is not increased in order. The article describes in detail the procedure of designing and testing of the final algorithm. In order to test the suitability of particular algorithms, it was first necessary to generate synthetic data with a known displacement and of adequate quality. Apart from modifying the classical iterative algorithm we also focused on a method to detect the exact position of the signal peak with the help of regression. Individual partial changes in the algorithm were tested and mutually compared so that the best combination can be determined. Finally, the resultant algorithm was comprehensively tested.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Project
<a href="/en/project/TE01020020" target="_blank" >TE01020020: Josef Bozek Competence Centre for Automotive Industry</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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