dorsal/arxiv
View SchemaAsymptotic behaviour of the Rayleigh--Taylor instability
| Authors | Laurent Duchemin, Christophe Josserand, Paul Clavin |
|---|---|
| Categories | |
| ArXiv ID | physics/0412120 |
| URL | https://arxiv.org/abs/physics/0412120 |
| DOI | 10.1103/PhysRevLett.94.224501 |
Abstract
We investigate long time numerical simulations of the inviscid Rayleigh-Taylor instability at Atwood number one using a boundary integral method. We are able to attain the asymptotic behavior for the spikes predicted by Clavin & Williams\cite{clavin} for which we give a simplified demonstration. In particular we observe that the spike's curvature evolves like $t^3$ while the overshoot in acceleration shows a good agreement with the suggested $1/t^5$ law. Moreover, we obtain consistent results for the prefactor coefficients of the asymptotic laws. Eventually we exhibit the self-similar behavior of the interface profile near the spike.
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"abstract": "We investigate long time numerical simulations of the inviscid\nRayleigh-Taylor instability at Atwood number one using a boundary integral\nmethod. We are able to attain the asymptotic behavior for the spikes predicted\nby Clavin \u0026 Williams\\cite{clavin} for which we give a simplified demonstration.\nIn particular we observe that the spike\u0027s curvature evolves like $t^3$ while\nthe overshoot in acceleration shows a good agreement with the suggested $1/t^5$\nlaw. Moreover, we obtain consistent results for the prefactor coefficients of\nthe asymptotic laws. Eventually we exhibit the self-similar behavior of the\ninterface profile near the spike.",
"arxiv_id": "physics/0412120",
"authors": [
"Laurent Duchemin",
"Christophe Josserand",
"Paul Clavin"
],
"categories": [
"physics.flu-dyn"
],
"doi": "10.1103/PhysRevLett.94.224501",
"title": "Asymptotic behaviour of the Rayleigh--Taylor instability",
"url": "https://arxiv.org/abs/physics/0412120"
},
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