dorsal/arxiv
View SchemaLagrangian one-particle velocity statistics in a turbulent flow
| Authors | J. Berg |
|---|---|
| Categories | |
| ArXiv ID | physics/0610155 |
| URL | https://arxiv.org/abs/physics/0610155 |
Abstract
We present Lagrangian one-particle statistics from the Risoe PTV experiment of a turbulent flow. We estimate the Lagrangian Kolmogorov constant $C_0$ and find that it is affected by the large scale inhomogeneities of the flow. The pdf of temporal velocity increments are highly non-Gaussian for small times which we interpret as a consequence of intermittency. Using Extended Self-Similarity we manage to quantify the intermittency and find that the deviations from Kolmogorov 1941 similarity scaling is larger in the Lagrangian framework than in the Eulerian. Through the multifractal model we calculate the multifractal dimension spectrum.
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"date_created": "2026-03-02T18:01:14.871000Z",
"date_modified": "2026-03-02T18:01:14.871000Z",
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"abstract": "We present Lagrangian one-particle statistics from the Risoe PTV experiment\nof a turbulent flow. We estimate the Lagrangian Kolmogorov constant $C_0$ and\nfind that it is affected by the large scale inhomogeneities of the flow. The\npdf of temporal velocity increments are highly non-Gaussian for small times\nwhich we interpret as a consequence of intermittency. Using Extended\nSelf-Similarity we manage to quantify the intermittency and find that the\ndeviations from Kolmogorov 1941 similarity scaling is larger in the Lagrangian\nframework than in the Eulerian. Through the multifractal model we calculate the\nmultifractal dimension spectrum.",
"arxiv_id": "physics/0610155",
"authors": [
"J. Berg"
],
"categories": [
"physics.flu-dyn"
],
"title": "Lagrangian one-particle velocity statistics in a turbulent flow",
"url": "https://arxiv.org/abs/physics/0610155"
},
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"variant": "snapshot-2026-03-01",
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