Folded Edge of Turbulence in a Pipe

The results of an experimental investigation into the threshold boundary between laminar and disordered pipe flow are presented. Complex features have been uncovered using a highly refined experimental approach where an intermediate periodic state forms an integral part of the transition sequence. In accord with the suggestions produced by a numerical investigation, the boundary is found to be folded with a complicated structure. This raises important questions about accepted definitions of threshold amplitudes in this long-standing problem. © 2010 The American Physical Society.


Published in:
Phys. Rev. Lett., 105, 17, 174502
Year:
2010
ISSN:
0031-9007
Laboratories:




 Record created 2015-12-07, last modified 2018-01-28

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