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Inhomogeneous vortex tangles in counterflow superfluid turbulence: flow in convergent channels Cover

Inhomogeneous vortex tangles in counterflow superfluid turbulence: flow in convergent channels

Open Access
|May 2016

Abstract

We investigate the evolution equation for the average vortex length per unit volume L of superfluid turbulence in inhomogeneous flows. Inhomogeneities in line density L andincounterflowvelocity V may contribute to vortex diffusion, vortex formation and vortex destruction. We explore two different families of contributions: those arising from asecondorder expansionofthe Vinenequationitself, andthose whichare notrelated to the original Vinen equation but must be stated by adding to it second-order terms obtained from dimensional analysis or other physical arguments.

Language: English
Page range: 130 - 149
Submitted on: Dec 31, 2014
Accepted on: Jun 17, 2015
Published on: May 20, 2016
Published by: Italian Society for Applied and Industrial Mathemathics
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2016 Lidia Saluto, Maria Stella Mongioví, published by Italian Society for Applied and Industrial Mathemathics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.