Hysteresis on Wells Turbine Characteristics in Reciprocating Flow
The Wells turbine for a wave power generator has hysteretic characteristics in a reciprocating flow, which results in the inaccurate prediction of performance in a quasisteady analysis. In order to clarify the hysteretic characteristics, an experimental investigation has been made by use of a newly...
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| Format: | Article |
| Language: | English |
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Wiley
1998-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X98000025 |
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| _version_ | 1832567047890927616 |
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| author | T. Setoguchi M. Takao K. Kaneko |
| author_facet | T. Setoguchi M. Takao K. Kaneko |
| author_sort | T. Setoguchi |
| collection | DOAJ |
| description | The Wells turbine for a wave power generator has hysteretic characteristics in a
reciprocating flow, which results in the inaccurate prediction of performance in a quasisteady
analysis. In order to clarify the hysteretic characteristics, an experimental investigation
has been made by use of a newly devised turbine equipment in which a sinusoidal flow
condition is simulated. The results have shown that hysteresis becomes more pronounced as solidity and blade thickness become larger, but it is insensitive to the Reynolds number and blade surface roughness. By means of pressure measurements on the blade surface, it is found that the hysteresis occurs due to different behavior of wakes between an accelerating flow and a decelerating flow. |
| format | Article |
| id | doaj-art-a3b81e166645413d863a60990d6771f8 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 1998-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-a3b81e166645413d863a60990d6771f82025-02-03T01:02:31ZengWileyInternational Journal of Rotating Machinery1023-621X1998-01-0141172410.1155/S1023621X98000025Hysteresis on Wells Turbine Characteristics in Reciprocating FlowT. Setoguchi0M. Takao1K. Kaneko2Department of Mechanical Engineering, Saga University, 1 Honjo-Machi, Saga-shi, Saga 840, JapanDepartment of Mechanical Engineering, Saga University, 1 Honjo-Machi, Saga-shi, Saga 840, JapanDepartment of Mechanical Engineering, Saga University, 1 Honjo-Machi, Saga-shi, Saga 840, JapanThe Wells turbine for a wave power generator has hysteretic characteristics in a reciprocating flow, which results in the inaccurate prediction of performance in a quasisteady analysis. In order to clarify the hysteretic characteristics, an experimental investigation has been made by use of a newly devised turbine equipment in which a sinusoidal flow condition is simulated. The results have shown that hysteresis becomes more pronounced as solidity and blade thickness become larger, but it is insensitive to the Reynolds number and blade surface roughness. By means of pressure measurements on the blade surface, it is found that the hysteresis occurs due to different behavior of wakes between an accelerating flow and a decelerating flow.http://dx.doi.org/10.1155/S1023621X98000025Wells turbineNatural energyWave power generatorFluid machinery HysteresisUnsteady flow. |
| spellingShingle | T. Setoguchi M. Takao K. Kaneko Hysteresis on Wells Turbine Characteristics in Reciprocating Flow International Journal of Rotating Machinery Wells turbine Natural energy Wave power generator Fluid machinery Hysteresis Unsteady flow. |
| title | Hysteresis on Wells Turbine Characteristics in Reciprocating Flow |
| title_full | Hysteresis on Wells Turbine Characteristics in Reciprocating Flow |
| title_fullStr | Hysteresis on Wells Turbine Characteristics in Reciprocating Flow |
| title_full_unstemmed | Hysteresis on Wells Turbine Characteristics in Reciprocating Flow |
| title_short | Hysteresis on Wells Turbine Characteristics in Reciprocating Flow |
| title_sort | hysteresis on wells turbine characteristics in reciprocating flow |
| topic | Wells turbine Natural energy Wave power generator Fluid machinery Hysteresis Unsteady flow. |
| url | http://dx.doi.org/10.1155/S1023621X98000025 |
| work_keys_str_mv | AT tsetoguchi hysteresisonwellsturbinecharacteristicsinreciprocatingflow AT mtakao hysteresisonwellsturbinecharacteristicsinreciprocatingflow AT kkaneko hysteresisonwellsturbinecharacteristicsinreciprocatingflow |