Nonlinear excursions of particles in ideal 2D flows

Research output: Contribution to journalJournal article – Annual report year: 2011Researchpeer-review

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A number of problems related to particle trajectories in ideal 2D flows are discussed. Both regular particle paths, corresponding to integrable dynamics, and irregular or chaotic paths may arise. Examples of both types are shown. Sometimes, in the same flow, certain particles will follow regular paths while others follow irregular paths. Even in the chaotic region the amount of regularity or irregularity of a path depends on initial conditions and system parameters. The notion of a transported fluid region or “atmosphere” is mentioned. Various conclusions, ideas and queries are formulated based on the examples given. The intimate mix of regular and chaotic trajectories complicates a purely Lagrangian approach to fluid flow problems.
Original languageEnglish
JournalPhysica D: Nonlinear Phenomena
Issue number2
Pages (from-to)199-207
Publication statusPublished - 2010
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Rigid body, Particle motion, Chaos, Point vortex, Ideal flow

ID: 5226994