Abstract
In this paper, the software FLUENT was employed and the two-dimensional flow fields of external gear pump, such as flow distribution, velocity distribution, pressure distribution, turbulent kinetic energy distribution are obtained. The results show that the pressure of the pump presents the symmetry and the maximum static pressure is 0.127 MPa at the oil absorption cavity inlet. The maximum velocity appeared in the left side of the gear pump body reached 6.97m/s and the minimum velocity reached 1.09m/s on the two gears meshing line. Turbulence kinetic energy distribution of the pump shows the symmetry and the minimum turbulent kinetic energy appeared in the two gear mesh is 0.0312m2/s2. Meanwhile, the maximum turbulent kinetic energy reached 12.2 m2/s2 at the exit of the oil cavity. The maximum exit velocity appeared at the position of the intermediate point reached 3m/s. The results have referenced significance for design and analysis of external gear pump.
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