dc.contributor.author | Bergan, Carl Werdelin | |
dc.contributor.author | Solemslie, Bjørn Winther | |
dc.contributor.author | Østby, Petter Thorvald Haug | |
dc.contributor.author | Dahlhaug, Ole Gunnar | |
dc.date.accessioned | 2019-05-08T06:52:38Z | |
dc.date.available | 2019-05-08T06:52:38Z | |
dc.date.created | 2018-05-28T08:43:03Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | International Journal of Fluid Machinery and Systems. 2018, 11 (2), 146-153. | nb_NO |
dc.identifier.issn | 1882-9554 | |
dc.identifier.uri | http://hdl.handle.net/11250/2596883 | |
dc.description.abstract | A hydrofoil resembling a high head Francis runner blade was submerged in a rectangular channel and attached to the walls in a fixed-beam configuration. The hydrofoil was excited by piezoelectric Macrofiber composite actuators (MFCs), and the vibration was measured at the trailing edge with Laser Doppler Vibrometry (LDV) and semiconductor strain gauges. The hydrofoil was exposed to water velocities ranging from 0 to 25 m/s. Lock-in occurred at approx. 11m/s. The damping increased linearly with the water velocity, with a slope of 0.02 %/(m/s) below lock-in, and 0.13 %/(m/s) above lock-in. The natural frequency of the foil increased slightly | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Korean Society for Fluid Machinery | nb_NO |
dc.title | Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 146-153 | nb_NO |
dc.source.volume | 11 | nb_NO |
dc.source.journal | International Journal of Fluid Machinery and Systems | nb_NO |
dc.source.issue | 2 | nb_NO |
dc.identifier.doi | 10.5293/IJFMS.2018.11.2.146 | |
dc.identifier.cristin | 1587029 | |
dc.relation.project | Norges forskningsråd: 257588 | nb_NO |
dc.relation.project | Norges forskningsråd: 254987 | nb_NO |
dc.description.localcode | The International Journal of Fluid Machinery and Systems (IJFMS) is an open access journal | nb_NO |
cristin.unitcode | 194,64,25,0 | |
cristin.unitcode | 194,64,92,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.unitname | Institutt for maskinteknikk og produksjon | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |