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Influence of inlet boundary conditions in the prediction of rotor dynamic forces and moments for a hydraulic turbine using CFD
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
Chalmers University of Technology, Department of Applied Mechanics.
2008 (English)In: ISROMAC-12: the Twelfth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery ; Honolulu, Hawaii, February 17 - 22, 2008, Pacific Center of Thermal-Fluids Engineering, Honolulu, 2008Conference paper, Published paper (Refereed)
Abstract [en]

The rotordynamic behavior of a hydraulic turbine is influenced by fluid-rotor interactions at the turbine runner. In this paper computational fluid dynamics (CFD) is used to numerically predict the rotordynamical excitation forces due to the flow through a hydraulic turbine runner. The simulations are carried out for three different boundary conditions. One axi-symmetric inlet boundary condition, and two axi-periodic boundary conditions. The two latter are obtained from separate simulations of wicket gate and spiral casing flow. It is found that the inlet boundary condition significantly affects the rotordynamical forces and moments.

Place, publisher, year, edition, pages
Honolulu, 2008.
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-32142Local ID: 68760610-a29e-11dc-ac39-000ea68e967bOAI: oai:DiVA.org:ltu-32142DiVA: diva2:1005376
Conference
International Symposium on Transport Phenomena and Dynamics of Rotating Machinery : 17/02/2008 - 22/02/2008
Note
Godkänd; 2008; Bibliografisk uppgift: 1 CD-ROM; 20071204 (karmar)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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