| contributor author | Yang, J. | |
| contributor author | Pavesi, G. | |
| contributor author | Yuan, S. | |
| contributor author | Cavazzini, G. | |
| contributor author | Ardizzon, G. | |
| date accessioned | 2017-05-09T01:18:56Z | |
| date available | 2017-05-09T01:18:56Z | |
| date issued | 2015 | |
| identifier issn | 0098-2202 | |
| identifier other | fe_137_05_051109.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/158248 | |
| description abstract | The unsteady phenomena of a low specific speed pump–turbine operating in pump mode were characterized by dynamic pressure measurements and highspeed flow visualization of injected air bubbles. Analyses were carried out on the pressure signals both in frequency and time–frequency domains and by bispectral protocol. The results obtained by highspeed camera were used to reveal the flow pattern in the diffuser and return vanes channels The unsteady structure identified in the return vane channel appeared both at full and part load condition. Furthermore, a rotating stall structure was found and characterized in the diffuser when the pump operated at part load. The characteristics of these two unsteady structures are described in the paper. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Experimental Characterization of a Pump–Turbine in Pump Mode at Hump Instability Region | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 5 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.4029572 | |
| journal fristpage | 51109 | |
| journal lastpage | 51109 | |
| identifier eissn | 1528-901X | |
| tree | Journal of Fluids Engineering:;2015:;volume( 137 ):;issue: 005 | |
| contenttype | Fulltext | |