Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio
The flow field at the design condition was presented and interpreted in Part I. The flow field at one off-design condition (Speed Ratio 0.065) is presented and interpreted in this part. In addition, the hydraulic performance is analyzed by using flow measurement results both upstream and downstream...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1023621X01000239 |
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| _version_ | 1850170644604387328 |
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| author | Y. F. Liu B. Lakshminarayana J. Burningham |
| author_facet | Y. F. Liu B. Lakshminarayana J. Burningham |
| author_sort | Y. F. Liu |
| collection | DOAJ |
| description | The flow field at the design condition was presented and interpreted in Part I. The flow field at one off-design condition (Speed Ratio 0.065) is presented and interpreted in this
part. In addition, the hydraulic performance is analyzed by using flow measurement
results both upstream and downstream of the turbine and inside the turbine rotor
passage. It is found that at the off-design conditions, especially the near stall condition
(Speed Ratio 0.065), most of the pressure drop occurs in the first half of turbine passage.
About 82% of the total torque is extracted between the turbine inlet and the middle
plane. In addition, the shell develops torque at nearly five times the rate of core.
Furthermore, the higher the speed ratio, the higher the total pressure drop. Loss is
maximum at the near stall condition and varies almost linearly with the speed ratios. A
compromise has to be made between the design and the off-design performance in order
to improve the overall performance and fuel economy of torque converters. |
| format | Article |
| id | doaj-art-9aae3142483a4ee0a6aea98f35f6703e |
| institution | OA Journals |
| issn | 1023-621X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-9aae3142483a4ee0a6aea98f35f6703e2025-08-20T02:20:26ZengWileyInternational Journal of Rotating Machinery1023-621X2001-01-017427128410.1155/S1023621X01000239Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratioY. F. Liu0B. Lakshminarayana1J. Burningham2Center for Gas Turbines and Power, The Pennsylvania State University, University Park, PA 16802, USACenter for Gas Turbines and Power, The Pennsylvania State University, University Park, PA 16802, USACenter for Gas Turbines and Power, The Pennsylvania State University, University Park, PA 16802, USAThe flow field at the design condition was presented and interpreted in Part I. The flow field at one off-design condition (Speed Ratio 0.065) is presented and interpreted in this part. In addition, the hydraulic performance is analyzed by using flow measurement results both upstream and downstream of the turbine and inside the turbine rotor passage. It is found that at the off-design conditions, especially the near stall condition (Speed Ratio 0.065), most of the pressure drop occurs in the first half of turbine passage. About 82% of the total torque is extracted between the turbine inlet and the middle plane. In addition, the shell develops torque at nearly five times the rate of core. Furthermore, the higher the speed ratio, the higher the total pressure drop. Loss is maximum at the near stall condition and varies almost linearly with the speed ratios. A compromise has to be made between the design and the off-design performance in order to improve the overall performance and fuel economy of torque converters.http://dx.doi.org/10.1155/S1023621X01000239Torque converterTurbineFlow fieldOff-design conditionSpeed ratio effect. |
| spellingShingle | Y. F. Liu B. Lakshminarayana J. Burningham Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio International Journal of Rotating Machinery Torque converter Turbine Flow field Off-design condition Speed ratio effect. |
| title | Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based
on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio |
| title_full | Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based
on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio |
| title_fullStr | Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based
on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio |
| title_full_unstemmed | Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based
on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio |
| title_short | Flow Field in the Turbine Rotor Passage in an Automotive Torque Converter Based
on the High Frequency Response Rotating Five-hole Probe Measurement Part II: Flow field at the off-design condition and effects of speed ratio |
| title_sort | flow field in the turbine rotor passage in an automotive torque converter based on the high frequency response rotating five hole probe measurement part ii flow field at the off design condition and effects of speed ratio |
| topic | Torque converter Turbine Flow field Off-design condition Speed ratio effect. |
| url | http://dx.doi.org/10.1155/S1023621X01000239 |
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