Abstract
In order to study the influence of oil tank with different throat areas on mirror-plate-pump performance, numerical simulation by applying ANSYS CFX software was conducted between four oil tanks with different throat areas, which combined with the same mirror plate respectively. Contrastive analysis of external characteristics of different runner-pumps and energy losses in different oil tanks show that the change of throat area has little effect on the brake horsepower curve, but it has great influence on head and efficiency curve, both of which first move up and then decline with the decrease of throat area in the whole calculation flow range, and at the same time the change of throat area causes great change of losses in oil tank. Achieving the best match relationship between oil tank and mirror plate in design process can make mirror-plate-pump display the best performance.
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