Acceleration statistics of finite-sized particles in turbulent flow: the role of Faxén forces
By E. Calzavarini, R. Volk, M. Bourgoin, E. Lévêque, Jean-François Pinton, Federico Toschi. Journal of Fluid Mechanics, 2008
134 citations recorded by the source corpus.
The dynamics of particles in turbulence when the particle size is larger than the dissipative scale of the carrier flow are studied. Recent experiments have highlighted signatures of particles' finiteness on their statistical properties, namely a decrease of their acceleration variance, an increase of correlation times (at increasing the particles size) and an independence of the probability density function of the acceleration once normalized to their variance. These effects are not captured by point-particle models. By means of a detailed comparison between numerical simulations and experimental data, we show that a more accurate description is obtained once Faxén corrections are included.
Subfields: Computational Mechanics, Ocean Engineering
View Paper: https://www.semanticscholar.org/paper/74f8adc4a6ef0d1b0b7822eb7bf1063395226676
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In Computational Mechanics
- Varghese Mathai
- Detlef Lohse
- R. Monchaux
- M. Bourgoin
- A. Cartellier
- Markus Uhlmann
- Todor Doychev
- S. Grossmann
In Ocean Engineering
Citations in the corpus
- Bubbly and Buoyant Particle–Laden Turbulent Flows (2020, methodology): “Note that the effects of changing Γ and size ratio (Ξ) are not represented in this diagram. show this transition if the bubble Rep is small.”
- Analyzing preferential concentration and clustering of inertial particles in turbulence (2012, background): “Recently, Faxen corrections (Gatignol (1983)) have been taken into account in one-way simulations in an attempt to simulate finite size effects (Calzavarini et al. (2009)).”