Yang, SS and Fang, T and Wang, T and Singh, P (2022) Value of blade number in centrifugal flow pumps in both turbine and pump mode through experimental and numerical means. In: Progress in Computational Fluid Dynamics, 22 (4). pp. 197-218.
Full text not available from this repository.Abstract
The hydraulic significance of blade number of pump impellers is experimentally and numerically investigated in turbine mode and pump mode respectively for three different specific speeds and validated using the classical theoretical approach of streamline shape (angular momentum of fluid) and loss gradient. The results indicate that for both pump and turbine mode operation, the effect of streamline shape is dominating over the change in hydraulic loss with increase in blade number. The frictional component of losses for blade passage using an existing empirical model is compared with computational results. While the flow line shapes markedly improved, yet the losses could not be reduced. The study finds an optimum number of blades different for turbine (more blades) and pump (fewer blades) operation. It recommends systematic adaption of increased blade number particularly for 'pump as turbine' users.
| Item Type: | Journal Article |
|---|---|
| Publication: | Progress in Computational Fluid Dynamics |
| Publisher: | Inderscience Publishers |
| Additional Information: | The copyright for this article belongs to the Inderscience Publishers. |
| Keywords: | Centrifugal pumps; Hydraulic motors; Hydraulic turbines; Turbomachine blades, Blade numbers; Centrifugal flow; Euler velocity vector; Hydraulic loss; PAT; Pump as turbine; Pump impeller; Streamline; Turbine modes; Velocity vectors, Angular momentum |
| Department/Centre: | Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA) |
| Date Deposited: | 31 Aug 2022 08:30 |
| Last Modified: | 31 Aug 2022 08:30 |
| URI: | https://eprints.iisc.ac.in/id/eprint/76294 |
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