The linear stability of an acceleration-skewed oscillatory Stokes layer

Christian Thomas*

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)
3 Downloads (Pure)

Abstract

The linear stability of the family of flows generated by an acceleration-skewed oscillating planar wall is investigated using Floquet theory. Neutral stability curves and critical conditions for linear instability are determined for an extensive range of acceleration-skewed oscillating flows. Results indicate that acceleration skewness is destabilising and reduces the critical Reynolds number for the onset of linearly unstable behaviour. The structure of the eigenfunctions is discussed and solutions suggest that disturbances grow in the direction of highest acceleration.
Original languageEnglish
Article numberA27
Pages (from-to)1-17
Number of pages17
JournalJournal of Fluid Mechanics
Volume895
Early online date22 May 2020
DOIs
Publication statusPublished - 25 Jul 2020

Keywords

  • boundary layer stability

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