| contributor author | Lewis, Bryan J. | |
| contributor author | Cimbala, John M. | |
| date accessioned | 2017-05-09T01:24:39Z | |
| date available | 2017-05-09T01:24:39Z | |
| date issued | 2015 | |
| identifier issn | 0889-504X | |
| identifier other | turbo_137_08_081001.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/159950 | |
| description abstract | A unique guide vane design, which includes trailingedge jets, is presented for a mixedflow Francis hydroturbine. The water injection causes a change in bulk flow direction at the inlet of the rotor. When properly tuned, altering the flow angle results in a significant improvement in turbine efficiency during offdesign operation. Unsteady CFD simulations show nearly 1% improvement in overall turbine efficiency with the use of injection. This revolutionary concept also has the ability to reduce the intensity of the rotor–stator interactions (RSI) by compensating for the momentum deficit of the wicket gate wakes. This technology may be equally applied to other turbomachinery devices with problematic rotor–stator flow misalignments. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Unsteady Computational Fluid Dynamic Analysis of the Behavior of Guide Vane Trailingâ€گEdge Injection and Its Effects on Downstream Rotor Performance in a Francis Hydroturbine | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 8 | |
| journal title | Journal of Turbomachinery | |
| identifier doi | 10.1115/1.4029427 | |
| journal fristpage | 81001 | |
| journal lastpage | 81001 | |
| identifier eissn | 1528-8900 | |
| tree | Journal of Turbomachinery:;2015:;volume( 137 ):;issue: 008 | |
| contenttype | Fulltext | |
