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Parametric study of the beta-sigma two-fluid model for simulating fully suspended slurry flow: Effect of flow conditions.

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    SYSNO ASEP0538048
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleParametric study of the beta-sigma two-fluid model for simulating fully suspended slurry flow: Effect of flow conditions.
    Author(s) Messa, G. V. (IT)
    Malin, M. (GB)
    Matoušek, Václav (UH-J) ORCID, SAI, RID
    Source TitleMeccanica. - : Springer - ISSN 0025-6455
    Roč. 56, č. 5 (2021), s. 1047-1077
    Number of pages31 s.
    Publication formOnline - E
    Languageeng - English
    CountryCH - Switzerland
    Keywordsslurry flows ; beta-omega two-fluid model ; two fluid models ; finite volume formulation
    Subject RIVBK - Fluid Dynamics
    OECD categoryFluids and plasma physics (including surface physics)
    Method of publishingOpen access
    Institutional supportUH-J - RVO:67985874
    UT WOS000619687700001
    EID SCOPUS85101210744
    DOI10.1007/s11012-021-01314-6
    AnnotationAs proven in a recently published paper [Messa GV, Matousˇek V (2020) Analysis and discussion of two fluid modelling of pipe flow of fully suspended slurry. Powder Technol 30:747 768.], the b-r two-fluid model is capable of accurately reproducing the main features of turbulent, fully-suspended slurry flows in horizontal pipes provided that suitable values of the two parameters b and r are chosen. At present, the case-specific nature of b and r and their lack of a clear physical meaning are the main obstacles that must be overcome to give the b-r two-fluid model value not only as interpretative tool, but also as a predictive one. An important preliminary step to achieve this goal is to disclose the mathematical essence of the b-r two-fluid model, namely, to interpret the fluid-dynamic solution on the grounds of the structure of the differential and discretized equations. Such a methodological approach is applied here to the benchmark case of turbulent slurry flow between two infinite, horizontal, parallel plates, focusing, in particular, on the influence of the bulkmean velocity of the slurry and the volumetric concentration of the solids in the flow. The study provides not only deeper insight into the b-r model, but also indicates important implications for alternative two-fluid models.
    WorkplaceInstitute of Hydrodynamics
    ContactSoňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
    Year of Publishing2022
    Electronic addresshttps://link.springer.com/article/10.1007/s11012-021-01314-6
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