# Seminars & Colloquia Calendar

## Turbulence: from the basics to slightly beyond

#### Yves Pomeau - French National Centre for Scientific Research

Location: ** Zoom**

Date & time: Wednesday, 30 March 2022 at 10:45AM - 11:45AM

In the landscape of physics, turbulence stands in a rather unique place. The problems it attempts to solve can be traced back to Newton's Principia with slow progress afterwards even though

1) the equations to be solved are well-known (Euler eq. for inviscid fluids, Navier-Stokes with viscosity)

2) The range of applications is huge, from moving objects to weather and climate studies

Over the last forty years, big progress in the understanding of the transition from laminar (not time dependent) to turbulent flows. Dynamical system theory yields a fair understanding of transition in small boxes (the "routes to chaos").In systems with many degrees of freedom (like parallel flows or pipe flows) the transition is continuous and follows the directed percolation scenario, which explains observations made in 1888 by Osborne Reynolds.

There remains to understand the regime of very large Reynolds numbers, very far from the onset of stability. I'll discuss the modeling of this regime, namely the way momentum is exchanged by interaction between turbulent fluctuations, the so-called closure problem, in a concrete situation.

R. Shapiro Organizer's Page

Chiara Damiolini, Ian Coley and Franco Rota -Charles Weibel Organizer's Page

Brooke Logan

Wujun Zhang Organizer's webpage

Ziming Shi, Sagun Chanillo, Xiaojun Huang, Chi Li, Jian Song Seminar website Old seminar website

Swastik Kopparty, Sepehr Assadi Seminar webpage

Jeffry Kahn, Bhargav Narayanan, Jinyoung Park Organizer's webpage

Brooke Ogrodnik, Website

Robert Dougherty-Bliss and Doron Zeilberger --> homepage

Paul Feehan, Daniel Ketover, Natasa Sesum Organizer's webpage

Lev Borisov, Emanuel Diaconescu, Angela Gibney, Nicolas Tarasca, and Chris Woodward Organizer's webpage

Jason Saied Seminar webpage

Brian Pinsky, Rashmika Goswami website

Quentin Dubroff Organizer's webpage

James Holland; Organizer website

Edna Jones Organizer's webpage

Brooke Ogrodnik website

Yanyan Li, Zheng-Chao Han, Jian Song, Natasa Sesum Organizer's Webpage

Organizer: Luochen Zhao

Yanyan Li, Zheng-Chao Han, Natasa Sesum, Jian Song Organizer's Page

Lisa Carbone, Yi-Zhi Huang, James Lepowsky, Siddhartha Sahi Organizer's webpage

Simon Thomas website

Kasper Larsen, Daniel Ocone and Kim Weston Organizer's page

Joel Lebowitz, Michael Kiessling

Yanyan Li, Haim Brezis Organizer's Webpage

Stephen D. Miller, John C. Miller, Alex V. Kontorovich, Alex Walker seminar website

Stephen D. Miller

Brooke Ogrodnik, Website

Organizers: Yanyan Li, Z.C. Han, Jian Song, Natasa Sesum

Yael Davidov Seminar webpage

Kristen Hendricks, Xiaochun Rong, Hongbin Sun, Chenxi Wu Organizer's page

Fioralba Cakoni Seminar webpage

Ebru Toprak, Organizer

Organizer's webpage: Organizer's webpage

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