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Automatic design of hydropower flows: the draft tube
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-1033-0244
2002 (English)In: Computational technologies for fluid/thermal/structural/chemical systems with industrial applications: presented at the [International Symposium on Computational Technologies for Fluid/Thermal/Chemical/Stress Systems with Industrial Applications], 2002 ASME Pressure Vessels and Piping Conference, Vancouver, British Columbia, Canada, August 5 - 9, 2002 / [ed] C.R. Kleijn, New York: American Society of Mechanical Engineers, Pressure Vessels and Piping Division , 2002, Vol. 448, No. 1, p. 299-307Conference paper, Published paper (Refereed)
Abstract [en]

The focus is set on a redesign of an existing draft tube by usage of an automated optimisation based on CFD calculations. By this method a design can be predicted in terms of a predefined objective function, here the pressure recovery factor. The design parameters used are based on spline-functions that are set under certain restrictions. One is that the new design should fit into the old one. The optimisation is performed with the Response Surface Method (RSM) implemented on the commercial code iSIGHT6.0. The flow simulations are carried out with the commercial code, CFX4, with the standard k-ε turbulence model and with boundary conditions based on detailed experimental data. With this set-up and the chosen parameterisation the highest value is found at the edge of the design space allowing for further improvements.

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers, Pressure Vessels and Piping Division , 2002. Vol. 448, No. 1, p. 299-307
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-29269DOI: 10.1115/PVP2002-1565Scopus ID: 36385388Local ID: 2b01f7f0-9fc3-11db-8975-000ea68e967bISBN: 0-7918-4659-8 (print)OAI: oai:DiVA.org:ltu-29269DiVA, id: diva2:1002492
Conference
ASME Pressure Vessels and Piping Conference : 05/08/2002 - 09/08/2002
Note
Godkänd; 2002; Bibliografisk uppgift: ASME Digital store: PVP2002-1565; 20070109 (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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