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A multi-scale limit of a randomly forced rotating $3$-D compressible fluid

Analysis of PDEs 2019-01-18 v3 Probability Fluid Dynamics

Abstract

We study a singular limit of a scaled compressible Navier--Stokes--Coriolis system driven by both a deterministic and stochastic forcing terms in three dimensions. If the Mach number is comparable to the Froude number with both proportional to say ε1\varepsilon\ll 1, whereas the Rossby number scales like εm\varepsilon^m for m>1m>1 large, then we show that any family of weak martingale solution to the 33-D randomly forced rotating compressible equation (under the influence of a deterministic centrifugal force) converges in probability, as ε0\varepsilon\rightarrow0, to the 22-D incompressible Navier--Stokes system with a corresponding random forcing term.

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Cite

@article{arxiv.1801.09649,
  title  = {A multi-scale limit of a randomly forced rotating $3$-D compressible fluid},
  author = {Prince Romeo Mensah},
  journal= {arXiv preprint arXiv:1801.09649},
  year   = {2019}
}

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40 pages