University of Cambridge > Talks.cam > Fluid Mechanics (CUED) > Low-order modelling of turbulent structure and statistics

Low-order modelling of turbulent structure and statistics

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Recent years have seen various new approaches to low-order modelling of turbulent fluid flows. These include the resolvent-based approach, Koopman/DMD modes and recurrent solutions of the Navier-Stokes equations. These approaches are all linked. Recurrent solutions to the Navier-Stokes equations are widely thought to give shape to the state-space that turbulent motion inhabits. Yet, the logarithmic layer has remained resistant to a structure-based description in terms of invariant solutions or so-called attached eddies. The resolvent framework will be explained in detail, and some modelling and scaling results will be presented for predicted eddies in the log layer.

This talk is part of the Fluid Mechanics (CUED) series.

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