The convective nature of instability in plane Poiseuille flow
By numerical solution of the Orr–Sommerfeld equation for complex frequency and complex wavenumber for a wide range of Reynolds numbers R and by asymptotic analysis for large R, it is shown that there is no absolute instability in a two‐dimensional plane Poiseuille flow for any R and that the flow is...
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Veröffentlicht in: | The Physics of fluids (1958) 1987-08, Vol.30 (8), p.2303-2305 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | By numerical solution of the Orr–Sommerfeld equation for complex frequency and complex wavenumber for a wide range of Reynolds numbers R and by asymptotic analysis for large R, it is shown that there is no absolute instability in a two‐dimensional plane Poiseuille flow for any R and that the flow is convectively unstable for R
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ISSN: | 0031-9171 2163-4998 |
DOI: | 10.1063/1.866118 |