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Automatic shape optimisation of a hydropower draft tube
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-1033-0244
2003 (English)In: Proceedings of 4th ASME-JSME Joint Fluids Engineering Conference, American Society of Mechanical Engineers , 2003, Vol. Vol. 2, p. 1819-1824Conference paper, Published paper (Refereed)
Abstract [en]

Draft tube designs have to a large extend been based on intuition and on the experience of the design engineer. In a close future, CFD simulations coupled with optimisation algorithms will assist in the search for an optimal technical solution. Such a shape optimisation technique to redesign an existing draft tube is presented in this paper. By this method, a design can be predicted in terms of a predefined objective function, here the pressure recovery factor. The optimisation is performed with the Response Surface Method (RSM) implemented on the commercial code iSIGHT7.0, while the CFD simulations are carried out with the commercial code CFX4.4. The boundary conditions are based on detailed experimental data and the turbulence is modelled with the standard k-ε turbulence model. With this set-up and with two different parameterisations, Adapted and Profile Design respectively, an optimal geometry of the ERCOFTAC Turbine-99 draft tube can be predicted.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers , 2003. Vol. Vol. 2, p. 1819-1824
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-31386DOI: 10.1115/FEDSM2003-45181Local ID: 58d209e0-a56d-11db-9811-000ea68e967bISBN: 791836738 (print)OAI: oai:DiVA.org:ltu-31386DiVA, id: diva2:1004620
Conference
ASME-JSME Joint Fluids Engineering Conference : 06/07/2003 - 11/07/2003
Note
Godkänd; 2003; Bibliografisk uppgift: CD-ROM. ASME Digital Store: FEDSM2003-45181; 20070105 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Marjavaara, DanielLundström, Staffan

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CiteExportLink to record
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  • apa
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