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Time dependent pressure measurements on the Turbine-99 draft tube
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7599-0895
2007 (English)In: Proceedings of the 2nd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, Timisoara,Romania, October 24-26, 2007 / [ed] R. Susan-Resiga; S. Bernad; S. Muntean, Timişoara, 2007, 145-152 p.Conference paper, Published paper (Refereed)
Abstract [en]

The flow properties of the Turbine-99 draft tube have been subject of much interest by the research community. The first part of the draft tube, i.e. the cone, raised many questions about the pressure recovery and the time dependence. A complementary experimental investigation was therefore performed in the model test facility of Vattenfall at Älvkarleby, Sweden, to get time resolved wall pressure data. Good agreement with the old measurements is achieved. However, the positions for the T(n) and R(n)-cases are not as expected. The results give a detailed map of the pressure behaviour in this part of the draft tube and are thus of interest for the validation of CFD simulations. The pressure amplitude at the inlet of the draft tube is 1000 Pa. The results also give new information regarding the cases used in the Turbine-99 workshops.

Place, publisher, year, edition, pages
Timişoara, 2007. 145-152 p.
Series
Transaction of Mechanics, Scientific Bulletin of the Politehnica University of Timisoara, Romania, ISSN 1224-6077 ; 52(66)
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-39381Local ID: e1cbc690-86f5-11dc-a4a5-000ea68e967bOAI: oai:DiVA.org:ltu-39381DiVA: diva2:1012892
Conference
IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems : 24/10/2007 - 26/10/2007
Note
Godkänd; 2007; 20071030 (cervante)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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