| CFD SIMULATION OF 3D FLOW IN LARGE-BORE AXIAL-FLOW PUMP WITH HALF-ELBOW SUCTION SUMP |
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| 作者姓名： | WANG Fu-jun LI Yao-jun CONG Guo-hui WANG Wen-e WANG Hai-song |
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| 作者单位： | WANG Fu-jun，LI Yao-jun，CONG Guo-hui，WANG Wen-e，WANG Hai-song College of Water Conservancy and Civil Engineering，China Agricultural University，Beijing 100083，China |
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| 摘 要： | 1. INTRODUCTION Axial-flow pumps are usually designed for pumping large volumes of water against low pressure head. Suction sump is one of key elements in pump stations. For pumps with larger than 2 m, closed type suction sump plans are used to provide pr…
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| 关 键 词： | 轴向流 泵 CFD 数字模拟 湍流 |
| 收稿时间： | 2005-09-08 |
CFD SIMULATION OF 3D FLOW IN LARGE-BORE AXIAL-FLOW PUMP WITH HALF-ELBOW SUCTION SUMP |
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| WANG Fu-jun LI Yao-jun CONG Guo-hui WANG Wen-e WANG Hai-song.CFD SIMULATION OF 3D FLOW IN LARGE-BORE AXIAL-FLOW PUMP WITH HALF-ELBOW SUCTION SUMP[J].Journal of Hydrodynamics,2006,18(2):243-247. |
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| Authors: | WANG Fu-jun LI Yao-jun CONG Guo-hui WANG Wen-e WANG Hai-song |
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| Abstract: | Numerical simulations of 3D turbulent flow in a large-bore axial-flow pump coupled with half-elbow suction sump were performed by using CFD approach. The numerical model and velocity and pressure distributions in entire flow passage were presented. The obvious backflow in half-elbow suction sump and strong flow nonuniformity at suction sump outlet were observed, whereas these phenomena were not observed in existing studies performed for a separate suction sump by either experimental or numerical approach. This result indicates that the interaction between half-elbow suction sump and impeller has significant effect on the flow distribution in the pump passage. The change of pump efficiency caused by the interaction was discussed. |
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| Keywords: | axial flow pump half elbow suction sump CFD |
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