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http://dx.doi.org/10.3795/KSME-B.2017.41.11.709

Hydrodynamic Calculation of Two-stage Weis-Fogh Type Water Turbine  

Ro, Ki Deok (Dept. of Mechanical System Engineering, Gyeongsang Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.11, 2017 , pp. 709-717 More about this Journal
Abstract
In this study, a model of two-stage Weis-Fogh type water turbine model is proposed, the hydrodynamic characteristics of this water turbine model are calculated by the advanced vortex method. The basic conditions and the motion of each wing are the same as that of the single-stage model previously proposed by the same author. The two wings (NACA0010 airfoils) and both channel walls are approximated by source and vortex panels, and free vortices are introduced from the body surfaces. The distance between the front wing axis and the rear wing axis, and the phase difference between the motion of the two wings, which is in phase and out of phase are set as the calculation parameters. For each case, the unsteady flow fields, pressure fields, force coefficients, and efficiency of the two wings are calculated, and the hydrodynamic characteristics of the proposed water turbine model are discussed.
Keywords
Hydraulic Machine; Water Turbine; Unsteady Flow; Advanced Vortex Method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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