Acceleration statistics of inertial particles from high resolution DNS turbulence

F. Toschi; J. Bec; L. Biferale; G. Boffetta; A. Celani; M. Cencini; A. Lanotte; S. Musacchio

doi:10.1007/978-1-4020-6472-2_11

Acceleration statistics of inertial particles from high resolution DNS turbulence

F. Toschi, J. Bec, L. Biferale, G. Boffetta, A. Celani, M. Cencini, A. Lanotte, S. Musacchio

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

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Abstract

We present results from recent direct numerical simulations of heavy particle transport in homogeneous, isotropic, fully developed turbulence, with grid resolution up to 5123 and R¿ ˜ 185. By following the trajectories of millions of particles with different Stokes numbers, St ¿ [0.16 : 3.5], we are able to characterize in full detail the statistics of particle acceleration. We focus on the probability density function of the normalised acceleration a/arms and on the behaviour of their rootmean-squared acceleration arms as a function of both St and R¿. We explain our findings in terms of two concurrent mechanisms: particle clustering, very effective for small St, and filtering induced by finite particle response time, taking over at larger St.

Original language	English
Title of host publication	Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006)
Editors	Y. Kaneda
Publisher	Springer
Pages	73-78
ISBN (Print)	978-1-4020-6471-5
DOIs	https://doi.org/10.1007/978-1-4020-6472-2_11
Publication status	Published - 2008

Publication series

Name	IUTAM Bookseries
Volume	4
ISSN (Print)	1875-3507

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Toschi, F., Bec, J., Biferale, L., Boffetta, G., Celani, A., Cencini, M., Lanotte, A., & Musacchio, S. (2008). Acceleration statistics of inertial particles from high resolution DNS turbulence. In Y. Kaneda (Ed.), Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006) (pp. 73-78). (IUTAM Bookseries; Vol. 4). Springer. https://doi.org/10.1007/978-1-4020-6472-2_11

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title = "Acceleration statistics of inertial particles from high resolution DNS turbulence",

abstract = "We present results from recent direct numerical simulations of heavy particle transport in homogeneous, isotropic, fully developed turbulence, with grid resolution up to 5123 and R¿ ˜ 185. By following the trajectories of millions of particles with different Stokes numbers, St ¿ [0.16 : 3.5], we are able to characterize in full detail the statistics of particle acceleration. We focus on the probability density function of the normalised acceleration a/arms and on the behaviour of their rootmean-squared acceleration arms as a function of both St and R¿. We explain our findings in terms of two concurrent mechanisms: particle clustering, very effective for small St, and filtering induced by finite particle response time, taking over at larger St.",

author = "F. Toschi and J. Bec and L. Biferale and G. Boffetta and A. Celani and M. Cencini and A. Lanotte and S. Musacchio",

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Toschi, F, Bec, J, Biferale, L, Boffetta, G, Celani, A, Cencini, M, Lanotte, A & Musacchio, S 2008, Acceleration statistics of inertial particles from high resolution DNS turbulence. in Y Kaneda (ed.), Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006). IUTAM Bookseries, vol. 4, Springer, pp. 73-78. https://doi.org/10.1007/978-1-4020-6472-2_11

Acceleration statistics of inertial particles from high resolution DNS turbulence. / Toschi, F.; Bec, J.; Biferale, L. et al.
Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006). ed. / Y. Kaneda. Springer, 2008. p. 73-78 (IUTAM Bookseries; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Acceleration statistics of inertial particles from high resolution DNS turbulence

AU - Toschi, F.

AU - Bec, J.

AU - Biferale, L.

AU - Boffetta, G.

AU - Celani, A.

AU - Cencini, M.

AU - Lanotte, A.

AU - Musacchio, S.

PY - 2008

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N2 - We present results from recent direct numerical simulations of heavy particle transport in homogeneous, isotropic, fully developed turbulence, with grid resolution up to 5123 and R¿ ˜ 185. By following the trajectories of millions of particles with different Stokes numbers, St ¿ [0.16 : 3.5], we are able to characterize in full detail the statistics of particle acceleration. We focus on the probability density function of the normalised acceleration a/arms and on the behaviour of their rootmean-squared acceleration arms as a function of both St and R¿. We explain our findings in terms of two concurrent mechanisms: particle clustering, very effective for small St, and filtering induced by finite particle response time, taking over at larger St.

AB - We present results from recent direct numerical simulations of heavy particle transport in homogeneous, isotropic, fully developed turbulence, with grid resolution up to 5123 and R¿ ˜ 185. By following the trajectories of millions of particles with different Stokes numbers, St ¿ [0.16 : 3.5], we are able to characterize in full detail the statistics of particle acceleration. We focus on the probability density function of the normalised acceleration a/arms and on the behaviour of their rootmean-squared acceleration arms as a function of both St and R¿. We explain our findings in terms of two concurrent mechanisms: particle clustering, very effective for small St, and filtering induced by finite particle response time, taking over at larger St.

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BT - Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006)

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Toschi F, Bec J, Biferale L, Boffetta G, Celani A, Cencini M et al. Acceleration statistics of inertial particles from high resolution DNS turbulence. In Kaneda Y, editor, Proceedings of the IUTAM Symposium on Computational Physics and New Perspectives in Turbulence (Nagoya, Japan, September, 11-14, 2006). Springer. 2008. p. 73-78. (IUTAM Bookseries). doi: 10.1007/978-1-4020-6472-2_11

Acceleration statistics of inertial particles from high resolution DNS turbulence

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