Reynolds stress anisotropy in rotating homogeneous decay

Karuna Koppula, André Bénard, Charles Petty

    Research output: ResearchConference contribution

    Abstract

    In rotating homogeneous decay, the prolate quadratic form associated with the normalized Reynolds (NR-) stress is elongated by a coupling between velocity fluctuations and the Coriolis acceleration. This paper shows that this well-known turbulence phenomenon is consistent with an algebraic anisotropic prestress (APS-) closure for the NR-stress that unifies the study of turbulent flows in rotating and non-rotating frames-of-reference. The APS-closure is a non-negative mapping of the NR-stress into itself and is, thereby, universally realizable for all turbulent flows.

    LanguageEnglish (US)
    Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
    Pages1379-1384
    Number of pages6
    Volume1
    EditionPARTS A, B AND C
    DOIs
    StatePublished - 2010
    EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada
    Duration: Aug 1 2010Aug 5 2010

    Other

    OtherASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
    CountryCanada
    CityMontreal, QC
    Period8/1/108/5/10

    Profile

    Anisotropy
    Turbulent flow
    Turbulence

    ASJC Scopus subject areas

    • Mechanical Engineering

    Cite this

    Koppula, K., Bénard, A., & Petty, C. (2010). Reynolds stress anisotropy in rotating homogeneous decay. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM (PARTS A, B AND C ed., Vol. 1, pp. 1379-1384). DOI: 10.1115/FEDSM-ICNMM2010-31230

    Reynolds stress anisotropy in rotating homogeneous decay. / Koppula, Karuna; Bénard, André; Petty, Charles.

    American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM. Vol. 1 PARTS A, B AND C. ed. 2010. p. 1379-1384.

    Research output: ResearchConference contribution

    Koppula, K, Bénard, A & Petty, C 2010, Reynolds stress anisotropy in rotating homogeneous decay. in American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM. PARTS A, B AND C edn, vol. 1, pp. 1379-1384, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, Montreal, QC, Canada, 8/1/10. DOI: 10.1115/FEDSM-ICNMM2010-31230
    Koppula K, Bénard A, Petty C. Reynolds stress anisotropy in rotating homogeneous decay. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM. PARTS A, B AND C ed. Vol. 1. 2010. p. 1379-1384. Available from, DOI: 10.1115/FEDSM-ICNMM2010-31230
    Koppula, Karuna ; Bénard, André ; Petty, Charles. / Reynolds stress anisotropy in rotating homogeneous decay. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM. Vol. 1 PARTS A, B AND C. ed. 2010. pp. 1379-1384
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