Unsteady view of transitional separation bubbles

J. C. Multi Lin, Laura Pauley

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Scopus citations

    Abstract

    Low-Reynolds-number separation created by a steady adverse pressure gradient is usually considered to have a steady, large-scale structure, The computations of Lin & Pauley (1993), however, suggest that an unsteady large-scale structure controls the mechanism of separation bubble reattachment. The detailed unsteady separation structure of a low-Reynolds-number Eppler 387 airfoil was numerically studied using a time accurate artificial compressibility code. Periodic vortex shedding form the separation was observed in all cases studied. This paper studies the role of curvature on the unsteady separation structure by considering a flat plate geometry subject to the same surface inviscid pressure gradient as an Eppler 387 airfoil at 4° angle of attack.

    Original languageEnglish (US)
    Title of host publicationSeparated Flows - 1993
    PublisherPubl by ASME
    Pages153-163
    Number of pages11
    Volume149
    ISBN (Print)0791809579
    StatePublished - 1993
    EventFluids Engineering Conference - Washington, DC, USA
    Duration: Jun 20 1993Jun 24 1993

    Other

    OtherFluids Engineering Conference
    CityWashington, DC, USA
    Period6/20/936/24/93

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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  • Cite this

    Multi Lin, J. C., & Pauley, L. (1993). Unsteady view of transitional separation bubbles. In Separated Flows - 1993 (Vol. 149, pp. 153-163). Publ by ASME.