dorsal/arxiv
View SchemaStochastic Stokes' drift
| Authors | Kalvis M. Jansons, G. D. Lythe |
|---|---|
| Categories | |
| ArXiv ID | physics/9808042 |
| URL | https://arxiv.org/abs/physics/9808042 |
| DOI | 10.1103/PhysRevLett.81.3136 |
Abstract
Classical Stokes' drift is the small time-averaged drift velocity of suspended non-diffusing particles in a fluid due to the presence of a wave. We consider the effect of adding diffusion to the motion of the particles, and show in particular that a non-zero time-averaged drift velocity exists in general even when the classical Stokes' drift is zero. Our results are obtained from a general procedure for calculating ensemble-averaged Lagrangian mean velocities for motion that is close to Brownian, and are verified by numerical simulations in the case of sinusoidal forcing.
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"abstract": "Classical Stokes\u0027 drift is the small time-averaged drift velocity of\nsuspended non-diffusing particles in a fluid due to the presence of a wave. We\nconsider the effect of adding diffusion to the motion of the particles, and\nshow in particular that a non-zero time-averaged drift velocity exists in\ngeneral even when the classical Stokes\u0027 drift is zero. Our results are obtained\nfrom a general procedure for calculating ensemble-averaged Lagrangian mean\nvelocities for motion that is close to Brownian, and are verified by numerical\nsimulations in the case of sinusoidal forcing.",
"arxiv_id": "physics/9808042",
"authors": [
"Kalvis M. Jansons",
"G. D. Lythe"
],
"categories": [
"physics.class-ph"
],
"doi": "10.1103/PhysRevLett.81.3136",
"title": "Stochastic Stokes\u0027 drift",
"url": "https://arxiv.org/abs/physics/9808042"
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