The linear stability of an acceleration-skewed oscillatory Stokes layer

Christian Thomas*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)
    17 Downloads (Pure)


    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
    Early online date22 May 2020
    Publication statusPublished - 25 Jul 2020


    • boundary layer stability


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