Numerical investigation of a centrifugal pump running in reverse mode

摘要: AbstractThis article reports a work on the three-dimensional flow simulation in centrifugal pump operating reverse mode. The simulations were carried out with commercial code Fluent using unsteady calculations together sliding mesh technique. Hence, it was possible to account for effect of blade—tongue interactions local flow. numerical predictions compared experimentally determined performance characteristics and also static pressure distribution obtained around periphery impeller. Once validated, model used investigate global Additionally, total radial force (steady components) impeller number flowrates estimated. It found that (peak peak) varied between 24 54.3 per cent steady value within considered interval. maximum amplitude reached when trailing edge one blade (pressure side) located 3°...