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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 ASEP 0538048 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Parametric 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, RIDSource Title Meccanica. - : Springer - ISSN 0025-6455
Roč. 56, č. 5 (2021), s. 1047-1077Number of pages 31 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords slurry flows ; beta-omega two-fluid model ; two fluid models ; finite volume formulation Subject RIV BK - Fluid Dynamics OECD category Fluids and plasma physics (including surface physics) Method of publishing Open access Institutional support UH-J - RVO:67985874 UT WOS 000619687700001 EID SCOPUS 85101210744 DOI https://doi.org/10.1007/s11012-021-01314-6 Annotation As 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. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2022 Electronic address https://link.springer.com/article/10.1007/s11012-021-01314-6
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