dorsal/arxiv
View SchemaNoise sustained pattern growth: Bulk versus boundary effects
| Authors | M. Luecke, A. Szprynger |
|---|---|
| Categories | |
| ArXiv ID | patt-sol/9708001 |
| URL | https://arxiv.org/abs/patt-sol/9708001 |
| DOI | 10.1103/PhysRevE.55.5509 |
| Journal | Phys. Rev. E 55, 5509-5521 (1997) |
Abstract
The effect of thermally generated bulk stochastic forces on the statistical growth dynamics of forwards bifurcating propagating macroscopic patterns is compared with the influence of fluctuations at the boundary of a semiinfinite system, $0<x$. To that end the linear complex Ginzburg-Landau amplitude equation with additive stochastic forcing is solved by a spatial Laplace transformation in the presence of arbitrary boundary conditions for the fluctuations of the pattern amplitude at $x=0$. A situation where the latter are advected with an imposed through-flow from an outside upstream part towards the inlet boundary at $x=0$ is investigated in more detail. The spatiotemporal growth behavior in the convectively unstable regime is compared with recent work by Swift, Babcock, and Hohenberg [Physica A 204, 625 (1994)] where a special boundary condition is imposed.
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"abstract": "The effect of thermally generated bulk stochastic forces on the statistical\ngrowth dynamics of forwards bifurcating propagating macroscopic patterns is\ncompared with the influence of fluctuations at the boundary of a semiinfinite\nsystem, $0\u003cx$. To that end the linear complex Ginzburg-Landau amplitude\nequation with additive stochastic forcing is solved by a spatial Laplace\ntransformation in the presence of arbitrary boundary conditions for the\nfluctuations of the pattern amplitude at $x=0$. A situation where the latter\nare advected with an imposed through-flow from an outside upstream part towards\nthe inlet boundary at $x=0$ is investigated in more detail. The spatiotemporal\ngrowth behavior in the convectively unstable regime is compared with recent\nwork by Swift, Babcock, and Hohenberg [Physica A 204, 625 (1994)] where a\nspecial boundary condition is imposed.",
"arxiv_id": "patt-sol/9708001",
"authors": [
"M. Luecke",
"A. Szprynger"
],
"categories": [
"patt-sol",
"nlin.PS"
],
"doi": "10.1103/PhysRevE.55.5509",
"journal_ref": "Phys. Rev. E 55, 5509-5521 (1997)",
"title": "Noise sustained pattern growth: Bulk versus boundary effects",
"url": "https://arxiv.org/abs/patt-sol/9708001"
},
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