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Browsing by Subject "CFD simulation"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Próba opisu zjawiska prądów wstecznych metodami CFD
    (2006) Branny, Marian; Broda, Krzysztof; Filek, Krzysztof; Mikołajczyk, Władysław
    An attempt to describe the reverse flow phenomena through numerical simulation was undertaken in this paper. The flow domain creates a 150 m long declined gallery with 15 degrees angle of inclination. The airflow is descending in isotropic conditions. In 10 m long gallery's section a hihger temperature of foor and roof than on remining rock surfaces was assumed. The cosidered problem is described by a system of equations of continuity, Navier-Stokes and energy together with k-epsylon turbulence model. The calculations were performed for different wall temperatures of heated gallery's section. The flow field patterns, characterizing the respective stages of reverse flow expasion are analyzed. CFD code validation based on the experimental data were performed. The numerical calculations by the programme FLUENT 6.1 have been supported.