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On the secondary instability in plane Poiseuille flow (1989)

Kim, John ; Moser, Robert D.

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Publication Date: 2011-08-19

Description: Numerical experiments were performed to clarify apparent differences between experimental observations and a theoretical prediction of the secondary instability in plane Poiseuille flow. It is shown that subharmonic breakdown is unlikely in natural transition as a result of the initial growth of what we call the 'minus' modes and consequent forcing of Orr-Sommerfeld modes present in the background noise. Subharmonic breakdown was achieved only when these minus modes were continuously suppressed.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: Physics of Fluids A (ISSN 0899-8213); 1; 775-777

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