Extreme dissipation and intermittency in turbulence

Extreme viscous dissipation rates are critical in many industrial, environmental and astrophysical processes dominated by small-scale turbulence. Despite its importance, there is no suitable theory to explain the Reynolds number scaling of the dissipation PDF, its variance and extremes. Any successful new theory will need to properly account for the intermittency and the development of turbulent flow structures at high Reynolds numbers. However, connecting the recent understanding of turbulent flow structure with the prediction of dissipation extrema in real industrial, environmental and astrophysical applications remains a significant challenge and opportunity.

The aim of this colloquium is to bring together scientists from different disciplines (fluid mechanics, turbulence, combustion, atmospheric and oceanic sciences, astrophysics) to discuss the key questions confronting the field. These will include:

  • What are the turbulent flow structures relevant to dissipation and how do they depend on the Reynolds number?
  • How do these insights in flow structure lead to new theories for the dissipation extremes? And how do these theoretical predictions compare to the available data?
  • What are the implications of extreme dissipation and intermittency for turbulent dispersion, combustion, atmospheric studies and astrophysics? And what are the open issues?

In addition to the contributed and invited talks, there will be opportunities for informal conversations.

This meeting will be held online.

The program (as per April 30) is available for download here.

Invited talks are given by:

Luca Biferale (Tor Vergata, Rome)

Bérengère Dubrulle (U Paris-Saclay, CNRS)

Takashi Ishihara (Okayama University)

Eliezer Kit (Tel Aviv University)

Alain Pumir (ENS de Lyon, CNRS)

P.K Yeung (Georgia Tech)

Registration

Registration is free. If you wish to attend the meeting, please send us an email at extremedissipation-3ME@tudelft.nl so we can keep you up-to-date with the links and other relevant information as the colloquium approaches.

Time schedule

One-page abstract submission deadline:   extended to  March 24, 2021

Notification of acceptance:                         April 14, 2021

Program announced:                                   May 1, 2021

Colloquium:                                                 May 17-19, 2021

Abstract submission

The deadline for the submission of a one-page abstract is March 15, 2021. Templates are provided below. Abstracts should be send in PDF format to: extremedissipation-3ME@tudelft.nl.

 

Abstract templates

Download word template.

Download latex template.

 

Organizers

Gerrit Elsinga – Delft University of Technology

Julian Hunt – University College London

 

Contact

g.e.elsinga@tudelft.nl