Complex spectral properties of non-Hermitian operators: An application to open-flow mixing systems

M. Giona, S. Cerbelli, F. Garofalo

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

We study the spectral properties of the advection-diffusion operator associated with a non-chaotic 3d Stokes flow defined in the annular region between counter-rotating cylinders of finite length. The focus is on the dependence of the eigenvalue-eigenfunction spectrum on the Peclet number Pe. Several convection-enhanced mixing regimes are identified, each characterized by a power law scaling, -µd~Pe-¿ (¿
Original languageEnglish
Article number34001
Pages (from-to)1-6
JournalEPL
Volume83
Issue number3
DOIs
Publication statusPublished - 2008

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