Giurgiu, V., Caridi, G. C. A., De Paoli, M., & Soldati, A. (2024). Full Rotational Dynamics of Plastic Microfibers in Turbulence. Physical Review Letters, 133(5), Article 054101. https://doi.org/10.1103/PhysRevLett.133.054101
The motion, settling, and dispersion of microplastics in the ocean are determined by their rotational dynamics. We present experiments on elongated, large aspect ratio, and mildly curved plastic fibers slightly longer than the Kolmogorov length scale. Exploiting their uniquely identifiable three-dimensional orientation, we perform original optical Lagrangian investigations and provide a set of homogeneous data on their rotation rates around their longitudinal axis: spinning rate, and transversal axes: tumbling rates, which we explain in the context of the general features of turbulence.
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Project title:
Mikrofasern in turbulenter Strömung im offenen Kanal: P 35505-N (FWF - Österr. Wissenschaftsfonds)
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Project (external):
FSE S3 HEaD PRIN
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Project ID:
1619942002 2017RSH3JY
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Research Areas:
Environmental Monitoring and Climate Adaptation: 100%
