Characterization of flow through porous metals

Michael J. Hargather, Karen Ann Thole

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

    Abstract

    Porous metals have long been considered as an ideal material in which to manufacture turbine components given the inherent large convective surface area. One consideration, however, in using porous metals is the increase in pressure drop that accompanies these materials. To characterize increases in pressure drop for porous materials, flow measurements were made on numerous porous metal coupons. The porosity of the coupons investigated had a range of four in terms of density. A technique for determining the effective internal flow area from pressure drop measurements was developed to provide an effective diameter. The pressure drop measurements were compared to an ideal isentropic compressible-flow nozzle and to a smooth, straight-walled tube. The comparisons show that the porous channels have a similar, but much larger pressure drop than the smooth walls. The experiments performed demonstrated that these porous geometries can be scaled to provide generalized pressure drop characteristics for all geometries.

    Original languageEnglish (US)
    Title of host publicationASME Turbo Expo 2013
    Subtitle of host publicationTurbine Technical Conference and Exposition, GT 2013
    DOIs
    StatePublished - Dec 17 2013
    EventASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 - San Antonio, Tx, United States
    Duration: Jun 3 2013Jun 7 2013

    Publication series

    NameProceedings of the ASME Turbo Expo
    Volume3 C

    Other

    OtherASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
    CountryUnited States
    CitySan Antonio, Tx
    Period6/3/136/7/13

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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  • Cite this

    Hargather, M. J., & Thole, K. A. (2013). Characterization of flow through porous metals. In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 (Proceedings of the ASME Turbo Expo; Vol. 3 C). https://doi.org/10.1115/GT2013-94945