论文信息 - Study on Radial Load in a Centrifugal Pump with Slope Volute Using CFD

Study on Radial Load in a Centrifugal Pump with Slope Volute Using CFD

Unsteady flow field in a centrifugal pump causes significant radial load on the impeller leading to the vibration in consequence. In order to reduce radial load, a special slope volute was proposed. The full 3D-URANS equations were solved for several flow rates between 60%~150% of rated conditions. The magnitude of average radial load was estimated by empirical formula. It was found that the numerical results agree with the results obtaining from empirical formula quite well. When adopting slope volute, the radial load on the impeller is much smaller compared with conventional spiral volute. So it is convinced that the radial load can be reduced significantly when using slope volute.

Ning Zhang | Zhong Li | Bo Gao | Min Guan Yang

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