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Preliminary measurements of the radial velocity in the Francis-99 draft tube cone
Department of Energy and Process Engineering, Water Power Laboratory, Norwegian University of Science and Technology, Trondheim.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik. Department of Engineering Sciences and Mathematics, Luleå University of Technology.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik. Department of Energy and Process Engineering, Water Power Laboratory, Norwegian University of Science and Technology, Trondheim.ORCID-id: 0000-0001-7599-0895
Department of Energy and Process Engineering, Water Power Laboratory, Norwegian University of Science and Technology, Trondheim.
2015 (engelsk)Inngår i: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 579, nr 1, artikkel-id 12014Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Two-dimensional particle image velocimetry (PIV) measurements in the draft tube cone of the Francis-99 model have been performed to complete the actual experimental data set with radial velocity data. The velocity profiles obtained presented some variation, which reason has not yet been identified. The presented results are therefore presented as preliminary until the reason is assessed. The axial velocity profiles corroborate well with the ones previously measured with laser Doppler velocimetry (LDV) for all operating points investigated. The radial velocity measured is small in magnitude for all operating points compared to the axial velocity. A gyroscopic effect induced by the swirl leaving the runner and the draft tube bend seems to induce an asymmetry in the draft tube cone.

sted, utgiver, år, opplag, sider
2015. Vol. 579, nr 1, artikkel-id 12014
HSV kategori
Forskningsprogram
Strömningslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-34049DOI: 10.1088/1742-6596/579/1/012014ISI: 000352267200014Scopus ID: 2-s2.0-84920711926Lokal ID: 826cfab1-79ce-4a73-a804-6fdeecce14b4OAI: oai:DiVA.org:ltu-34049DiVA, id: diva2:1007298
Konferanse
Francis-99 Workshop : Steady Operation of Francis Turbines 15/12/2014 - 16/12/2014
Merknad

Validerad; 2015; Nivå 1; 20150120 (andbra); Konferensartikel i tidskrift

Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2019-08-20bibliografisk kontrollert

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Amiri, KavehCervantes, Michel J.

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