Study of Boundary Conditions in single-Blade Pump Simulation
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Helsinki University of Technology |
J Muu elektroninen julkaisu
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Authors
Date
2007
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Mcode
Degree programme
Language
en
Pages
27
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Abstract
Abstract: Single-blade sewage pump is simulated numerically using FINFLO flowsolver. Loy-Reynolds number approach is utilized with a k-ε turbulence closure. The effect of the boundary conditions on a performance prediction, mass balance fluctuation and velocity distributions is studied. Main result: Pump head, efficiency and torque are obtained from the simulated flowfield and compared to measured data. The velocity distributions are also compared to the measurements available. Reversed in- and outflow boundary conditions do not remove the fluctuation in mass balance, it only changes location. Modified impeller surface boundary condition has a small effect on pump performance but more visible on velocity distributions.Description
Keywords
FINFLO, k-ε model, pump performance