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| Status of study on single channel centrifugal pumps and its developing tendency |
| FENG Jinsheng1, LIU Houlin1, DING Jian1, WU Xianfang2, DONG Liang1 |
| 1.National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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Abstract The application and structure of single channel centrifugal pumps are presented briefly. Then, the status of study on hydraulic design method, energy prediction model and unsteady fluid flow characteristics is outlined and summarized based on previous works achieved in China and abroad. Finally, the development trend of study on single channel centrifugal pump is prospected according to the current research results. Aiming at the strong unsteady characteristics inside the single channel of the centrifugal pump, it is essential to establish a formula for solving the slip factor within a full range of flow rate, and modify and update the existing formula for energy loss models, as well as develop an energy performance prediction model for the single channel pump. Based on a slip factor and performance prediction model, hydraulic design methods for single channel impellers can be put forward. Hence, the important issues in the study on single channel centrifugal pumps should include more extensive investigations into unsteady fluid flow characteristics, establishing more accurate energy performance prediction model and developing perfect design methods.
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Received: 19 January 2016
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