Transactions of the Visualization Society of Japan
Online ISSN : 1346-5260
ISSN-L : 1346-5252
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Volume 26, Issue 12
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  • Reconstruction of the Complex Flow with POD Method
    (Application to Flows Passing Across Tube Banks Measured by PIV Method)
    Kazunori HOSOTANI, Toyohiko SUZUKI, Yoshitaka OCHIAI
    2006 Volume 26 Issue 12 Pages 114-122
    Published: 2006
    Released on J-STAGE: December 31, 2006
    DOIhttps://doi.org/10.3154/tvsj.26.114
    JOURNAL FREE ACCESS
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    PIV technique is a flow-measurement method suitable for quantitative analysis of various flow problems. Although many algorithms have been recently developed to solve for various flows, it is still difficult to understand complex flows, especially turbulent flows in complex structures, such as tube-banks of heat exchangers. This paper studied complex flows to make suitable flow-dataset from velocity components measured by PIV. POD analysis is a very strong technique for this purpose. Coherent modes playing dominant roles in the flow are extracted with POD analysis. Trials to reconstruct noiseless flow-dataset with POD modes were carried out.
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