Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation
A mixed-flow pump with an unshrouded impeller was computed by a one-way coupled fluid-structure simulation to evaluate a prediction accuracy of stress and analyze a flow pattern which caused the largest stress. The stress occurring around a blade root was predicted by a numerical simulation and comp...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Japan Society of Mechanical Engineers
2010-04-01
|
| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_219/_pdf/-char/en |
| _version_ | 1819282240831488000 |
|---|---|
| author | Katsutoshi KOBAYASHI Shigeyoshi ONO Ichiro HARADA Yoshimasa CHIBA |
| author_facet | Katsutoshi KOBAYASHI Shigeyoshi ONO Ichiro HARADA Yoshimasa CHIBA |
| author_sort | Katsutoshi KOBAYASHI |
| collection | DOAJ |
| description | A mixed-flow pump with an unshrouded impeller was computed by a one-way coupled fluid-structure simulation to evaluate a prediction accuracy of stress and analyze a flow pattern which caused the largest stress. The stress occurring around a blade root was predicted by a numerical simulation and compared with an experimental one. Five flow rates, Q/Qbep=0,40,70,100 and 120% were simulated and the predicted stresses at all flow rates agreed with the experimental ones within -11∼+6% accuracy. The largest stress occurred around a blade root on a pressure side of blade surface at all flow rates. The stress became largest at 70% flow rate. A flow pattern around the blade was analyzed to investigate how the largest stress occurred at 70% flow rate. It was found in this study that a flow separation occurred around a leading edge on a suction side of blade surface at 70% flow rate and the largest load was acting on an outside region of blade. |
| first_indexed | 2024-12-24T01:12:27Z |
| format | Article |
| id | doaj.art-ce9e3f6edbe6461991662642a51206b9 |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-12-24T01:12:27Z |
| publishDate | 2010-04-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-ce9e3f6edbe6461991662642a51206b92022-12-21T17:22:51ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582010-04-015221923410.1299/jfst.5.219jfstNumerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure SimulationKatsutoshi KOBAYASHI0Shigeyoshi ONO1Ichiro HARADA2Yoshimasa CHIBA3Hitachi, Ltd.Hitachi Technologies and Services, Ltd.Hitachi Plant Technologies, Ltd.Hitachi Plant Technologies, Ltd.A mixed-flow pump with an unshrouded impeller was computed by a one-way coupled fluid-structure simulation to evaluate a prediction accuracy of stress and analyze a flow pattern which caused the largest stress. The stress occurring around a blade root was predicted by a numerical simulation and compared with an experimental one. Five flow rates, Q/Qbep=0,40,70,100 and 120% were simulated and the predicted stresses at all flow rates agreed with the experimental ones within -11∼+6% accuracy. The largest stress occurred around a blade root on a pressure side of blade surface at all flow rates. The stress became largest at 70% flow rate. A flow pattern around the blade was analyzed to investigate how the largest stress occurred at 70% flow rate. It was found in this study that a flow separation occurred around a leading edge on a suction side of blade surface at 70% flow rate and the largest load was acting on an outside region of blade.https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_219/_pdf/-char/enpumpunshrouded impellerfluid structure coupled simulationfluid dynamicsstructure dynamicshydraulic forcestress |
| spellingShingle | Katsutoshi KOBAYASHI Shigeyoshi ONO Ichiro HARADA Yoshimasa CHIBA Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation Journal of Fluid Science and Technology pump unshrouded impeller fluid structure coupled simulation fluid dynamics structure dynamics hydraulic force stress |
| title | Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation |
| title_full | Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation |
| title_fullStr | Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation |
| title_full_unstemmed | Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation |
| title_short | Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation |
| title_sort | numerical analysis of stress on pump blade by one way coupled fluid structure simulation |
| topic | pump unshrouded impeller fluid structure coupled simulation fluid dynamics structure dynamics hydraulic force stress |
| url | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_219/_pdf/-char/en |
| work_keys_str_mv | AT katsutoshikobayashi numericalanalysisofstressonpumpbladebyonewaycoupledfluidstructuresimulation AT shigeyoshiono numericalanalysisofstressonpumpbladebyonewaycoupledfluidstructuresimulation AT ichiroharada numericalanalysisofstressonpumpbladebyonewaycoupledfluidstructuresimulation AT yoshimasachiba numericalanalysisofstressonpumpbladebyonewaycoupledfluidstructuresimulation |