Boulder Fluid and Thermal Sciences Seminar Series

Monday, February 17, 2020

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3:00pm-4:00pm (refreshments at 2:45pm)
Bechtel Collaboratory 1B70, Discovery Learning Center
Engineering Center
University of Colorado at Boulder

Add to Calendar 02/17/2020 3:00:00 PM 02/17/2020 4:00:00 PM 9 Boulder Fluid and Thermal Sciences Seminar Bechtel Collaboratory 1B70, Discovery Learning Center, Engineering Center, University of Colorado, Boulder MM/DD/YYYY

Interscale Turbulent Energy Transfers

J. Christos Vassilicos CNRS Laboratoire de Mecanique des Fluides de Lille, France

The Turbulent energy transfers are studied concurrently in physical and scale spaces in terms of the fully generalised Karman-Howarth equation which is valid without any restriction as it is just a two-point reformulation of the incompressible Navier-Stokes equations. Direct Numerical Simulations of two turbulent flows are considered: triply periodic turbulence, which serves to demonstrate significant correlations between different fluctuating transfer processes, and the planar turbulent near wake where a balance between interscale transfer rate and turbulence dissipation exists which has nothing to do with its Kolmogorov counterpart for homogeneous stationary turbulence and a lot to do with inhomogeneity and the presence of coherent structures.

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Acknowledgment

Support from Herbert and Karen Vogel is gratefully acknowledged through a Vogel Faculty Fellowship at the University of Colorado, Boulder.

Schedule

Location

The seminar is held at the Discovery Learning Center (DLC) at the University of Colorado. Parking is free with a permit, which is provided at the seminar. The location for parking is shown in the map below.

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