Simulation of unsteady flow and runner rotation during shut-down of an axial water turbine
The paper describes a novel method for prediction of water turbine characteristics during transient operating regimes. It is based on numerical flow simulation with finite volume method. The whole axial turbine flow-passage is considered in the computation. During the observed time interval, the run...
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| Veröffentlicht in: | Journal of hydraulic research 2006-01, Vol.44 (1), p.129-137 |
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| container_title | Journal of hydraulic research |
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| creator | Kolšek, Tomaž Duhovnik, Jože Bergant, Anton |
| description | The paper describes a novel method for prediction of water turbine characteristics during transient operating regimes. It is based on numerical flow simulation with finite volume method. The whole axial turbine flow-passage is considered in the computation. During the observed time interval, the runner grid rotates and both the distributor vanes and runner blades simultaneously change their positions. The rotational speed of the runner is dependent on computed flow field. Rotational speed, axial force and pressure at selected points are predicted and compared to prototype measurement data. Convergence of results has been shown by using better influential computational parameters. The method was applied on an industrial case to show that it is useful for engineering practice |
| doi_str_mv | 10.1080/00221686.2006.9521668 |
| format | Article |
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It is based on numerical flow simulation with finite volume method. The whole axial turbine flow-passage is considered in the computation. During the observed time interval, the runner grid rotates and both the distributor vanes and runner blades simultaneously change their positions. The rotational speed of the runner is dependent on computed flow field. Rotational speed, axial force and pressure at selected points are predicted and compared to prototype measurement data. Convergence of results has been shown by using better influential computational parameters. The method was applied on an industrial case to show that it is useful for engineering practice</description><subject>computational fluid dynamics</subject><subject>computational grid</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Hydrology. Hydrogeology</subject><subject>moving boundaries</subject><subject>transient operating regime</subject><subject>Unsteady flow</subject><subject>water turbine</subject><issn>0022-1686</issn><issn>1814-2079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqF0MtKJDEUBuAgCraXRxCyGXfVk6SqUslOkfECwizUjZtwqpJohnSiSYq2394qu2V2M5scDnx_DvwInVGypESQn4QwRrngS0YIX8p2WrjYQwsqaFMx0sl9tJhNNaNDdJTzn2nlXPIFen5wq9FDcTHgaPEYcjGgN9j6uMYQNE5jCCbhFMsW6TG58ILz61gqHddfKQgYPhx4vIYy2TKm3gVzgg4s-GxOd_MYPV3_ery6re5_39xdXd5XQ8NFqYSlHaNNV7dkYFz0Wljew_xSU_Oe8JqJnmnbSa3B8Jo0pmG11ayv5QSgPkbn23_fUnwfTS5q5fJgvIdg4pgVk6RtJZP_hVS2QkjZTrDdwiHFnJOx6i25FaSNokTNlavvytVcudpVPuV-7A5AHsDbBGFw-W-4400nOJvcxda5YGNawTomr1WBjY_pO1T_-9QnB_-Vrg</recordid><startdate>20060101</startdate><enddate>20060101</enddate><creator>Kolšek, Tomaž</creator><creator>Duhovnik, Jože</creator><creator>Bergant, Anton</creator><general>Taylor & Francis Group</general><general>International Association for Hydraulic Research</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20060101</creationdate><title>Simulation of unsteady flow and runner rotation during shut-down of an axial water turbine</title><author>Kolšek, Tomaž ; Duhovnik, Jože ; Bergant, Anton</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c468t-8f172147350c268bd8f6bad8f61e36b06328b2df79ddae6304e423fd2b39e36a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>computational fluid dynamics</topic><topic>computational grid</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Hydrology. Hydrogeology</topic><topic>moving boundaries</topic><topic>transient operating regime</topic><topic>Unsteady flow</topic><topic>water turbine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kolšek, Tomaž</creatorcontrib><creatorcontrib>Duhovnik, Jože</creatorcontrib><creatorcontrib>Bergant, Anton</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hydraulic research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kolšek, Tomaž</au><au>Duhovnik, Jože</au><au>Bergant, Anton</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Simulation of unsteady flow and runner rotation during shut-down of an axial water turbine</atitle><jtitle>Journal of hydraulic research</jtitle><date>2006-01-01</date><risdate>2006</risdate><volume>44</volume><issue>1</issue><spage>129</spage><epage>137</epage><pages>129-137</pages><issn>0022-1686</issn><eissn>1814-2079</eissn><coden>JHYRAF</coden><abstract>The paper describes a novel method for prediction of water turbine characteristics during transient operating regimes. 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| ispartof | Journal of hydraulic research, 2006-01, Vol.44 (1), p.129-137 |
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| language | eng |
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| source | Taylor & Francis Journals Complete |
| subjects | computational fluid dynamics computational grid Earth sciences Earth, ocean, space Exact sciences and technology Hydrology. Hydrogeology moving boundaries transient operating regime Unsteady flow water turbine |
| title | Simulation of unsteady flow and runner rotation during shut-down of an axial water turbine |
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