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Title of article :
Nonlinear excursions of particles in ideal 2D flows
Author/Authors :
Aref، نويسنده , , H. and Roenby، نويسنده , , J. and Stremler، نويسنده , , M.A. and Tophّj، نويسنده , , L.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
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Abstract :
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.
Keywords :
Particle motion , Ideal flow , rigid body , Point vortex , Chaos
Journal title :
Physica D Nonlinear Phenomena
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Link To Document :