Low-order modelling of turbulent structure and statistics

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• Dr. Ati Sharma, University of Southampton
• Friday 03 February 2017, 13:00-14:00
• JDB Seminar Room, CUED.

If you have a question about this talk, please contact Akshath Sharma.

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 Fluids Group Seminar (CUED) series.

This talk is included in these lists:

• Acoustics Lab Seminars
• Engineering Department Acoustics/Combustion Student seminars
• Fluids Group Seminar (CUED)
• JDB Seminar Room, CUED

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