dorsal/arxiv
View SchemaScaling of acceleration in locally isotropic turbulence
| Authors | Reginald J. Hill |
|---|---|
| Categories | |
| ArXiv ID | physics/0111171 |
| URL | https://arxiv.org/abs/physics/0111171 |
| DOI | 10.1017/S0022112001007091 |
Abstract
The variances of the fluid-particle acceleration and of the pressure-gradient and viscous force are given. The scaling parameters for these variances are velocity statistics measureable with a single-wire anemometer. For both high and low Reynolds numbers, asymptotic scaling formulas are given; these agree quantitatively with DNS data. Thus, the scaling can be presumed known for all Reynolds numbers. Fluid-particle acceleration variance does not obey K41 scaling at any Reynolds number; this is consistent with recent experimental data. The non-dimensional pressure-gradient variance named lambda-sub{T} /lambda-sub{P} is shown to be obsolete.
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"abstract": "The variances of the fluid-particle acceleration and of the pressure-gradient\nand viscous force are given. The scaling parameters for these variances are\nvelocity statistics measureable with a single-wire anemometer. For both high\nand low Reynolds numbers, asymptotic scaling formulas are given; these agree\nquantitatively with DNS data. Thus, the scaling can be presumed known for all\nReynolds numbers. Fluid-particle acceleration variance does not obey K41\nscaling at any Reynolds number; this is consistent with recent experimental\ndata. The non-dimensional pressure-gradient variance named lambda-sub{T}\n/lambda-sub{P} is shown to be obsolete.",
"arxiv_id": "physics/0111171",
"authors": [
"Reginald J. Hill"
],
"categories": [
"physics.flu-dyn"
],
"doi": "10.1017/S0022112001007091",
"title": "Scaling of acceleration in locally isotropic turbulence",
"url": "https://arxiv.org/abs/physics/0111171"
},
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