A note on nearly two-dimensional weakly nonlinear instability of an incompressible free shear layer

Autor:	D. Davis, A. F. Messiter
Rok vydání:	1999
Předmět:	Physics Mechanical Engineering Reynolds number Laminar flow Tourbillon Condensed Matter Physics Instability Vortex Physics::Fluid Dynamics symbols.namesake Nonlinear system Amplitude Classical mechanics Mechanics of Materials Vortex stretching symbols
Zdroj:	Journal of Fluid Mechanics. 386:373-377
ISSN:	1469-7645 0022-1120
DOI:	10.1017/s0022112099004632
Popis:	The weakly nonlinear amplitude growth of slightly oblique instability waves in an incompressible free shear layer is shown to be first influenced by three-dimensionality in a limiting case for large Reynolds number when a particular order relationship is chosen between the spanwise scale and the amplitude of the small disturbance. The formulation resembles that for purely two-dimensional motion but includes the effect of vortex stretching in the nonequilibrium, nonlinear, viscous critical layer.
Databáze:	OpenAIRE
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