Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results
The interaction between the impeller and the diffuser is considered to have a strong influence on the unsteady flow in radial pumps. In this paper, the unsteady flow in a low specific speed radial diffuser pump has been simulated by the CFD code CFX-10. Both Particle Image Velocimetry (PIV) and Lase...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2009/410838 |
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| author | Jianjun Feng F.-K. Benra H. J. Dohmen |
| author_facet | Jianjun Feng F.-K. Benra H. J. Dohmen |
| author_sort | Jianjun Feng |
| collection | DOAJ |
| description | The interaction between the impeller and the diffuser is considered to have a strong influence on the unsteady flow in radial pumps. In this paper, the unsteady flow in a low specific speed radial diffuser pump has been simulated by the CFD code CFX-10. Both Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) measurements have been conducted to validate the CFD results. Both the phase-averaged velocity fields and the turbulence fields obtained from different methods are presented and compared, in order to enhance the understanding of the unsteady flow caused by the relative motion between the rotating impeller and the stationary diffuser. The comparison of the results shows that PIV and LDV give nearly the same phase-averaged velocity fields, but LDV predicts the turbulence much clearer and better than PIV. CFD underestimates the turbulence level in the whole region compared with PIV and LDV but gives the same trend. |
| format | Article |
| id | doaj-art-ba9cc96e30dc416e84c77255643d2bfe |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-ba9cc96e30dc416e84c77255643d2bfe2025-02-03T01:02:09ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342009-01-01200910.1155/2009/410838410838Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV ResultsJianjun Feng0F.-K. Benra1H. J. Dohmen2Department of Mechanical Engineering, Faculty of Engineering, University of Duisburg-Essen, 47048 Duisburg, GermanyDepartment of Mechanical Engineering, Faculty of Engineering, University of Duisburg-Essen, 47048 Duisburg, GermanyDepartment of Mechanical Engineering, Faculty of Engineering, University of Duisburg-Essen, 47048 Duisburg, GermanyThe interaction between the impeller and the diffuser is considered to have a strong influence on the unsteady flow in radial pumps. In this paper, the unsteady flow in a low specific speed radial diffuser pump has been simulated by the CFD code CFX-10. Both Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) measurements have been conducted to validate the CFD results. Both the phase-averaged velocity fields and the turbulence fields obtained from different methods are presented and compared, in order to enhance the understanding of the unsteady flow caused by the relative motion between the rotating impeller and the stationary diffuser. The comparison of the results shows that PIV and LDV give nearly the same phase-averaged velocity fields, but LDV predicts the turbulence much clearer and better than PIV. CFD underestimates the turbulence level in the whole region compared with PIV and LDV but gives the same trend.http://dx.doi.org/10.1155/2009/410838 |
| spellingShingle | Jianjun Feng F.-K. Benra H. J. Dohmen Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results International Journal of Rotating Machinery |
| title | Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results |
| title_full | Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results |
| title_fullStr | Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results |
| title_full_unstemmed | Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results |
| title_short | Comparison of Periodic Flow Fields in a Radial Pump among CFD, PIV, and LDV Results |
| title_sort | comparison of periodic flow fields in a radial pump among cfd piv and ldv results |
| url | http://dx.doi.org/10.1155/2009/410838 |
| work_keys_str_mv | AT jianjunfeng comparisonofperiodicflowfieldsinaradialpumpamongcfdpivandldvresults AT fkbenra comparisonofperiodicflowfieldsinaradialpumpamongcfdpivandldvresults AT hjdohmen comparisonofperiodicflowfieldsinaradialpumpamongcfdpivandldvresults |