Stochastic Reynolds theorem and generalized subgrid tensor - Archive ouverte HAL
Conference Papers Year : 2015

Stochastic Reynolds theorem and generalized subgrid tensor

Abstract

We propose a representation that allows decomposing the flow velocity in terms of a smooth component and a highly oscillating random component. This decomposion leads through a stochastic representation of the Reynolds transport theorem to a large-scale expression of the Navier-Stokes equations. In this work we show the benefit of such a representation to construct low order dynamical systems that include naturally a dissipative term related to the action of the small-scale random component.
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Dates and versions

hal-01238281 , version 1 (08-12-2015)

Identifiers

  • HAL Id : hal-01238281 , version 1

Cite

Valentin Resseguier, Etienne Mémin, Bertrand Chapron. Stochastic Reynolds theorem and generalized subgrid tensor. 15th European Turbulence Conference 2015, Aug 2015, Delft, Netherlands. ⟨hal-01238281⟩
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