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| Off-design flow field analysis and radial force prediction of centrifugal pump |
| WANG Yang1, ZHANG Xiang1, LI Yi-bin2 |
| 1.Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013 China; 2.College of Fluid Power and Control, Lanzhou University of Technology, Lanzhou, Gansu 730050, China |
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Abstract By adopting Reynolds Averaged N-S equation and RNG k-ε model,the impeller-volute coupled characteristics are simulated by using SIMPLEC algorithm.Based on the analysis of the flow field,the radial force calculation model is presented.The radial forces are calculated under different flow rate conditions.The result indicates that the radial force is the smallest under the designed flow rate.By comparing the numerical results with that from Stepanoff equation,it shows that the differences between them are from minus to plus with the increase of the flow rate,and the relative error is small.
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Received: 08 August 2013
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