dorsal/arxiv
View SchemaThe Richardson's Law in Large-Eddy Simulations of Boundary Layer flows
| Authors | G. Gioia, G. Lacorata, E. P. Marques Filho, A. Mazzino, U. Rizza |
|---|---|
| Categories | |
| ArXiv ID | physics/0309047 |
| URL | https://arxiv.org/abs/physics/0309047 |
| DOI | 10.1023/B:BOUN.0000039373.45669.68 |
Abstract
Relative dispersion in a neutrally stratified planetary boundary layer (PBL) is investigated by means of Large-Eddy Simulations (LES). Despite the small extension of the inertial range of scales in the simulated PBL, our Lagrangian statistics turns out to be compatible with the Richardson $t^3$ law for the average of square particle separation. This emerges from the application of nonstandard methods of analysis through which a precise measure of the Richardson constant was also possible. Its values is estimated as $C_2\sim 0.5$ in close agreement with recent experiments and three-dimensional direct numerical simulations.
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"abstract": "Relative dispersion in a neutrally stratified planetary boundary layer (PBL)\nis investigated by means of Large-Eddy Simulations (LES). Despite the small\nextension of the inertial range of scales in the simulated PBL, our Lagrangian\nstatistics turns out to be compatible with the Richardson $t^3$ law for the\naverage of square particle separation. This emerges from the application of\nnonstandard methods of analysis through which a precise measure of the\nRichardson constant was also possible. Its values is estimated as $C_2\\sim 0.5$\nin close agreement with recent experiments and three-dimensional direct\nnumerical simulations.",
"arxiv_id": "physics/0309047",
"authors": [
"G. Gioia",
"G. Lacorata",
"E. P. Marques Filho",
"A. Mazzino",
"U. Rizza"
],
"categories": [
"physics.flu-dyn",
"nlin.CD",
"physics.ao-ph"
],
"doi": "10.1023/B:BOUN.0000039373.45669.68",
"title": "The Richardson\u0027s Law in Large-Eddy Simulations of Boundary Layer flows",
"url": "https://arxiv.org/abs/physics/0309047"
},
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