Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine
Centrifugal pumps as turbine (PAT) are widely used in petrochemical and water conservancy industries. The research on the internal flow field and energy loss of PAT is of great significance to improve the performance and efficiency of PAT. In this paper, experimental and numerical simulation methods...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8884385 |
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| author | Jingze Li Dongrong Meng Xun Qiao |
| author_facet | Jingze Li Dongrong Meng Xun Qiao |
| author_sort | Jingze Li |
| collection | DOAJ |
| description | Centrifugal pumps as turbine (PAT) are widely used in petrochemical and water conservancy industries. The research on the internal flow field and energy loss of PAT is of great significance to improve the performance and efficiency of PAT. In this paper, experimental and numerical simulation methods are used to study the energy loss and flow field. The results show that the numerical simulation method can accurately simulate the internal flow field of PAT. And the entropy generation theory is applied to visualize the internal energy loss of PAT through the comparison of total pressure loss and entropy generation. The highest energy loss among PAT components is the guide vane. The loss in the guide vane is mainly caused by the flow separation caused by the wake of the guide vane and the asymmetric structure of the volute. The losses in the impeller are mainly due to flow separation and wake. Besides, the unsteady simulation results show that rotor-stator interaction has a great influence on the gap between the impeller and the guide vane. The research results provide a reference for the design of the PAT. This study is beneficial to studying the dynamic and static interference and PAT vibration to improve the stability of the PAT. |
| format | Article |
| id | doaj-art-e0c2ec7090de4b2ca880c09717f0d6a1 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e0c2ec7090de4b2ca880c09717f0d6a12025-08-20T02:21:30ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88843858884385Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as TurbineJingze Li0Dongrong Meng1Xun Qiao2School of Mechanical Engineering, Xijing University, Xi’an 710123, ChinaSchool of Mechanical Engineering, Xijing University, Xi’an 710123, ChinaSchool of Mechanical Engineering, Xijing University, Xi’an 710123, ChinaCentrifugal pumps as turbine (PAT) are widely used in petrochemical and water conservancy industries. The research on the internal flow field and energy loss of PAT is of great significance to improve the performance and efficiency of PAT. In this paper, experimental and numerical simulation methods are used to study the energy loss and flow field. The results show that the numerical simulation method can accurately simulate the internal flow field of PAT. And the entropy generation theory is applied to visualize the internal energy loss of PAT through the comparison of total pressure loss and entropy generation. The highest energy loss among PAT components is the guide vane. The loss in the guide vane is mainly caused by the flow separation caused by the wake of the guide vane and the asymmetric structure of the volute. The losses in the impeller are mainly due to flow separation and wake. Besides, the unsteady simulation results show that rotor-stator interaction has a great influence on the gap between the impeller and the guide vane. The research results provide a reference for the design of the PAT. This study is beneficial to studying the dynamic and static interference and PAT vibration to improve the stability of the PAT.http://dx.doi.org/10.1155/2020/8884385 |
| spellingShingle | Jingze Li Dongrong Meng Xun Qiao Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine Shock and Vibration |
| title | Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine |
| title_full | Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine |
| title_fullStr | Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine |
| title_full_unstemmed | Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine |
| title_short | Numerical Investigation of Flow Field and Energy Loss in a Centrifugal Pump as Turbine |
| title_sort | numerical investigation of flow field and energy loss in a centrifugal pump as turbine |
| url | http://dx.doi.org/10.1155/2020/8884385 |
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