Jul 4 – 12, 2018
Europe/Athens timezone
Group photo: indico.cern.ch/event/663474/images/19808-ICNFP_2018_Group_Photo.JPG

Two-loop calculations for a compressible turbulence: Renormalization group analysis of stochastic Navier-Stokes equation

Jul 5, 2018, 3:00 PM
20m
Room 3

Room 3

Speaker

Dr Nikolay Gulitskiy (Saint Petersburg State University)

Description

A model of fully developed turbulence of a compressible fluid is reviewed, an overview of turbulent regimes of a compressible fluid will be presented. Fluid dynamics is governed by stochastic version of Navier-Stokes equation. We show how corresponding field theoretic model can be obtained and further analyzed by means of the perturbative renormalization group (RG). In this approach, scaling properties are related to the fixed points of the RG equations. The perturbation theory is constructed within formal expansion scheme. Permissible scaling regimes in one- and two-loop levels are discussed.

Primary authors

Dr Nikolay Gulitskiy (Saint Petersburg State University) Dr Lucivjansky Tomas (Faculty of Sciences, P.J. Šafárik University, Moyzesova 16, 040 01 Košice, Slovakia) Dr Lukas Mizisin (Faculty of Sciences, P.J. Šafárik University, Moyzesova 16, 040 01 Košice, Slovakia) Mr Viktor Skultety (Faculty of Sciences, P.J. Šafárik University, Moyzesova 16, 040 01 Košice, Slovakia)

Presentation materials