Mathematics and Turbulence: where do we stand?

TL;DR

This paper reviews recent mathematical approaches to fluid dynamics and turbulence, highlighting advances in rigorous methods and their implications for understanding fundamental turbulence problems.

Contribution

It presents recent mathematical advances in turbulence, emphasizing rigorous tools and proofs related to regularity, weak solutions, and viscosity effects.

Findings

Insights into finite time regularity and weak solutions

Mathematical proofs provide understanding of turbulence phenomena

Advances in vanishing viscosity analysis

Abstract

This contribution covers the topics presented by the authors at the {\it ``Fundamental Problems of Turbulence, 50 Years after the Marseille Conference 1961"} meeting that took place in Marseille in 2011. It focuses on some of the mathematical approaches to fluid dynamics and turbulence. This contribution does not pretend to cover or answer, as the reader may discover, the fundamental questions in turbulence, however, it aims toward presenting some of the most recent advances in attacking these questions using rigorous mathematical tools. Moreover, we consider that the proofs of the mathematical statements (concerning, for instance, finite time regularity, weak solutions and vanishing viscosity) may contain information as relevant, to the understanding of the underlying problem, as the statements themselves.