A Comparison of Velocimetry Algorithms: Orthogonal Dynamic Programming Based Particle Image Velocimetry Versus Local Correlation Tracking

In the magnetic plasma fusion community and the solar physics research community, different velocimetry algorithms have been used. Those are: orthogonal dynamic programing based particle image velocimetry (ODP-PIV) and local correlation tracking (LCT), respectively. In this paper, a systematic compa...

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Bibliographic Details
Published in:Plasma and Fusion Research 2023/07/14, Vol.18, pp.1402058-1402058
Main Authors: KOBAYASHI, Tatsuya, ISHIKAWA, Ryohtaroh T., NAKATA, Motoki, OBA, Takayoshi, KATSUKAWA, Yukio
Format: Article
Language:English
Subjects:
Algorithms
Dynamic programming
local correlation tracking
magnetic fusion plasma
orthogonal dynamic programming
Particle image velocimetry
plasma turbulence
Solar physics
Spatial resolution
Tracking
Turbulence
velocimetry
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Summary:In the magnetic plasma fusion community and the solar physics research community, different velocimetry algorithms have been used. Those are: orthogonal dynamic programing based particle image velocimetry (ODP-PIV) and local correlation tracking (LCT), respectively. In this paper, a systematic comparison of these velocimetry codes is performed using synthetically produced turbulence data. The spatial scale of a typical turbulence pattern is scanned to examine the sensitivity of these codes on the tracer pattern property. Use of an LCT code is recommended when the ratio of the turbulence pattern size to the spatial resolution is small.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.18.1402058