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Vortex Dynamics of Wakes

  • Hassan Aref
Conference paper
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 6)

Abstract

Several problems related to the dynamics of vortex patterns as observed in wake flows are addressed. These include: The universal Strouhal-Reynolds number relation. The Hamiltonian dynamics of point vortices in a periodic strip, both the classical two-vortices-in-a-strip problem, which gives the structure and self-induced velocity of the traditional vortex street, and the three-vortices-in-a-strip problem, which is argued to be relevant to the wake behind an oscillating body. The bifurcation diagram for wake structure found experimentally by Williamson and Roshko is addressed theoretically.

Keywords

Vortex streets wakes; Strouhal-Reynolds number relation 

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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • Hassan Aref
    • 1
    • 2
  1. 1.Center for Fluid Dynamics and Department of PhysicsTechnical University of DenmarkKgs. LyngbyDenmark
  2. 2.Department of Engineering Science & MechanicsVirginia TechBlacksburgUSA

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