title: Mixing and clustering in compressible chaotic stirred flows.
abstract: The effect of compressibility on the mixing of Lagrangian tracers is analyzed in chaotic stirred flows. Mixing is studied in terms of the finite-time Lyapunov exponents. Mixing and clustering of passive tracers surrounded by Lagrangian coherent structures is observed to increase with compressibility intensity. The role of the stirring rate and compressibility on mixing and clustering has been analyzed.
authors.affiliation: Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
authors.forename: Vicente
authors.initials: V
authors.lastname: Pérez-Muñuzuri