@inbook{092ff4990f5d48f6903c9c2eb477a6d8,
title = "Experimental visualization of lagrangian coherent structures using eulerian averaging",
abstract = "Time-averaging of Eulerian light intensity measurements in flow visualization experiments is proposed as a powerful, non-intrusive technique for visualizing Lagrangian coherent structures in dynamically rich flows. For steady and time-periodic laminar flows a formal theory has been developed that explains the success of such technique by showing the equivalency between Eulerian and Lagrangian averages of quantities conserved along particle paths. Similar Eulerian averaging ideas, however, have been successfully used to visualize and extract the coherence time scale of Lagrangian coherent eddies in an aperiodic (turbulent) flow Recent examples from the application of these ideas to visualize Lagrangian coherent structures in laminar and turbulent flows are presented.",
author = "Fotis Sotiropoulos",
note = "Publisher Copyright: {\textcopyright} 2009, CISM, Udine.",
year = "2009",
doi = "10.1007/978-3-211-99346-0\_6",
language = "English (US)",
series = "CISM International Centre for Mechanical Sciences, Courses and Lectures",
publisher = "Springer International Publishing",
pages = "275--289",
booktitle = "CISM International Centre for Mechanical Sciences, Courses and Lectures",
}