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- W2168418379 abstract "To study the flow pattern of submersible mixers inner the pool, the research uses FLUENT6.3 mainframe computational fluid mechanics software as well as RNG k -eturbulent model、SIMPLE algorithm and rigid-lid assumption to numerically simulate the two-blade submersible mixers inner the sewage treatment pool and also analyzes the velocity distribution inner big pool and the distributions of the flow field, pressure and the velocity circulation inner the mixers' impellers. The results indicate that the fluid flow inner the pool belongs to high Reynolds number with large turbulence intensity; the fluid flow is complex, and there exists obvious big vortex; Coanda Effect and boundary-layer separation is also apparent. Clearly large vortex exists and the flow velocity near the blades is higher while the flow velocity of the pool's surface and bottom takes the form of double parabolic distribution and is lower. The velocity gradient and pressure gradient are obvious from working face to the blade back; the flow velocity is lower and the pressure is higher near the working face of the blades, moreover, there are high velocity zone and negative zone in the blade back. The velocity in the axis surface inlet and outlet the blades is also parabolic distributed, and its circulation does not vary considerably; the velocity in the axis surface inlet and outlet the blades is distributed similar as the velocity in the isometric axis surface, and its velocity circulation follows a linear law distribution. It can guide submersible mixer hydraulic performance in design study, simulation and engineering application. Streszczenie. W artykule przedstawiono wyniki badan dotyczących przeplywu w mieszaczach zatapialnych, znajdujących sie w basenie. W celu przeprowadzenia symulacji mieszacza dwulopatowego, wykorzystano m. in. oprogramowanie FLUENT6.3, model turbulencji k-epsilon, algorytm SIMPLE oraz zalozono sztywnośc wieka. Analizie poddano takze rozklad predkości i cieśnienia wokol wirnika mieszacza. Wyniki badan zostaly omowione i przedstawione wnioski (Charakterystyka pola przeplywu w basenie z mieszaczem dwulopatowym)" @default.
- W2168418379 created "2016-06-24" @default.
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- W2168418379 date "2013-01-01" @default.
- W2168418379 modified "2023-09-22" @default.
- W2168418379 title "The characteristics of two-blade Submersible Mixers' flow field inner the pool" @default.
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