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  • Hydraulic design and analysis of the Saxo-type vertical axial turbine
    Höfler, Edvard, 1945- ; Gale, Janez, 1977- ; Bergant, Anton
    The paper presents a procedure for hydraulic design and analysis of the blade geometry of a high specific speed runner of the Saxo-type double-regulated vertical axial turbine. The meridional ... through-flow in the passage from the conical guide vane apparatus to the draft-tube elbow is designed by a streamline curvature method (SCM). To validate the design method and predictions and to investigate the design duty point and a number of off-design operating regimes, an extensive CFD simulation inside the entire turbine water-passage is performed. The flow patterns downstream the guide vane apparatus and the runner exit flow are analyzed. The focus of the analysis is on distribution of the angular momentum alongside the turbine, as well as on its impact on the flow around the runner blades. The SCM design procedure presented in the paper proves to be a robust and accurate tool for the runner blade row design.
    Source: Transactions of the Canadian Society for Mechanical Engineering = Transactions de la Société canadienne de génie mécanique. - ISSN 0315-8977 (Vol. 35, iss. 1, 2011, str. 119-143)
    Type of material - article, component part
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 11820315

    Link(s):

    http://www.tcsme.org/Papers/Vol35/Vol35No1Paper8.pdf

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