Electronic Resource
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
5 (1993), S. 2229-2233
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The instability of the von Kármán vortex streets and the existence of a global Lyapunov function at the special aspect ratio h/l=(1/π)sinh−1(1), are some of the difficulties with the well-known von Kármán model. By consistently applying the principle of genericity, its shown that a new family of near-equilibrium periodic solutions of the von Kármán model for aspect ratios near 0.281... supplies numerous theoretical candidates for observed vortex trails. This set of solutions implies that there is no global Lyapunov functions when h/l≠(1/π)sinh−1(1) which in turn leads to a rich variety of near-equilibrium solutions for the model.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.858560
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