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15 mins
Stochastic Reynolds transport theorem and generalized subgrid tensor
Valentin Resseguier, Etienne Memin, Bertrand Chapron
Session: Large Eddy Simulation 2
Session starts: Thursday 27 August, 15:00
Presentation starts: 16:45
Room: Room E

Valentin Resseguier (INRIA)
Etienne Memin (INRIA)
Bertrand Chapron (IFREMER)

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.