Surfactant‐driven instability in two‐fluid pipe and channel flows | Zendy

Blyth M.G. | Zendy; Luo H. | Zendy; Pozrikidis C. | Zendy

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Surfactant‐driven instability in two‐fluid pipe and channel flows

Author(s) -

Blyth M.G.,

Luo H.,

Pozrikidis C.

Publication year - 2007

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.200700023

Subject(s) - instability , pulmonary surfactant , mechanics , work (physics) , channel (broadcasting) , flow (mathematics) , parametric statistics , nonlinear system , open channel flow , stability (learning theory) , hydrodynamic stability , mode (computer interface) , core (optical fiber) , materials science , physics , thermodynamics , engineering , mathematics , computer science , composite material , telecommunications , turbulence , reynolds number , operating system , statistics , quantum mechanics , machine learning

Recent work on the stability of two‐layer channel flow, with either smooth or corrugated walls, and core‐annular flow is discussed with the emphasis on the potentially destabilising effect of an insoluble surfactant. Linearised normal mode analyses are conducted to identify unstable parametric conditions, and these are followed up by computer simulations which confirm the linear results and, furthermore, reveal a rich array of dynamical behaviour in the nonlinear regime. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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