Torent dtreg software crack11/19/2022 ![]() ![]() Based on the experimental test and numerical simulation, the following conclusions can be drawn: (1) Impeller inlet geometry has important influence on performance improvement in the case of centrifugal pump. It is noted that the numerical results are fairly good compared with the experiments. The 3-D turbulent flow inside those pumps has been analyzed basing on RNG k-ε turbulence model and VOF cavitation model. In order to improve the pump, five impellers have been considered by extending the blade leading edge or applying much larger blade angle at impeller inlet compared with the original impeller. The hydraulic performance and cavitation performance of the pump have been tested experimentally. min -1 and close type impeller with exit diameter of 450 mm. ![]() This research treats the effect of impeller inlet geometry on performance improvement for a boiler feed pump, who is a centrifugal pump having specific speed of 183 m.m 3 min -1. Luo, Xianwu Zhang, Yao Peng, Junqi Xu, Hongyuan Yu, Weiping ![]() International Nuclear Information System (INIS) Impeller inlet geometry effect on performance improvement for centrifugal pumps The result indicated that the fluid dynamic interaction between the impeller and the guide vanes induces quite strong fluctuating fluid forces to the impeller, but nevertheless its influence on radial and tangential force components averaged over a whirling orbit is relatively small. The influence of the clearance configuration between the casing and front shroud of the impeller was also investigated. ![]() Experiments were further conducted for the cases in which a three-dimensional centrifugal impeller, a model of the boiler feed pump, whirls in vaneless and vaned diffusers. Lateral fluid forces on two-dimensional centrifugal impellers, which whirl on a circular orbit in a vaneless diffuser, were reported. Ohashi, Hideo Sakurai, Akira Nishihama, Jiro Influence of impeller and diffuser geometries on the lateral fluid forces of whirling centrifugal impeller ![]()
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