Display Abstract

Title Shell Models for Turbulent Flows

Name Susan Friedlander
Country USA
Email susanfri@usc.edu
Co-Author(s) Nathan Glatt-Holtz and Vlad Vicol
Submit Time 2014-03-18 19:05:26
Session
Special Session 1: Mathematical aspects of fluid dynamics
Contents
We discuss a shell model first introduced by Desnianskii and Novikov to simulate the cascade process of energy transmission in turbulent flows. We review results that reproduce Onsager's conjecture and Kolmogorov's laws for the dyadic model with constant forcing. We then discuss recent results for the stochastically driven model. Here localized, gaussian and white in time forcing serves as a proxy for generic large scale prosesses driving turbulent cascades.