Geodesic
Fluid dynamics in mobile tank with inclined slat screens
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, Tome 9 (2017) no. 3, pp. 27-33 Cet article a éte moissonné depuis la source Math-Net.Ru

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Forced oscillations of a rectangular tank partially filled with liquid are considered in this work. Two inclined screens are located in the tank as inserts. The system of Reynolds-averaged Navier–Stokes equations is solved numerically with the SST $k-\omega$ turbulence model. The volume of fluid (VOF) method is taken for simulation of gas-liquid interface. The problem is solved in two-dimensional statement. Unstructured triangular mesh converted to a fine structured rectangular mesh is used near the screens. A comparison of two turbulence models with experimental data is carried out, and the optimal model for the pressure loss coefficient calculation is chosen. The effect of the inserts inclination angle on the pressure loss coefficient is investigated at different values of the oscillation amplitude of the tank and different heights of the screen slats. It is obtained that the pressure loss coefficient dependence on the inclination angle at small Keulegan–Carpenter number has the local maximum depending on the oscillation amplitude and the geometric parameters of the screens. Comparison with the known analytical dependence of the pressure loss coefficient dependence on the inclination angle that obtained for the stationary flow through the inclined screen is conducted. It is found that this dependence needs to be verified for the case of oscillation tank at big screen inclination angle and small Keulegan–Carpenter number.
Keywords: free surface, forced oscillations, inclined screens, TLD.
Mots-clés : pressure loss coefficient 
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     title = {Fluid dynamics in mobile tank with inclined slat screens},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matematika, mehanika, fizika},
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     url = {http://geodesic.mathdoc.fr/item/VYURM_2017_9_3_a3/}
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M. B. Atmanskikh; A. Yu. Botalov; A. S. Gubkin; A. V. Pyatkova. Fluid dynamics in mobile tank with inclined slat screens. Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, Tome 9 (2017) no. 3, pp. 27-33. http://geodesic.mathdoc.fr/item/VYURM_2017_9_3_a3/

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