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논문 기본 정보

저자정보
(과학기술연합대학원대학교) (과학기술연합대학원대학교) (과학기술연합대학원대학교) (한국생산기술연구원) (K-water융합연구원) (K-water융합연구원) (과학기술연합대학원대학교)
저널정보
한국유체기계학회 한국유체기계학회 논문집 한국유체기계학회 논문집 제21권 제1호(통권 제106호)
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피인용 2

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    초록·키워드

    This paper presents the effect of a leakage wall on the hydraulic performance and internal flow characteristics of spiral casing tongue in a Francis hydro turbine. For hydraulic performance analysis of the Francis hydro turbine, three-dimensional steady state Reynolds-averaged Navier-Stokes calculation was conducted with a shear stress transport turbulence model. The validation of the numerical results was performed by comparing with the experimental results for power and efficiency. The total pressure distributions of each component for the real scale Francis hydro turbine and its scaled model, respectively, were investigated to understand effect of a leakage wall on the spiral casing for the internal flow characteristics at each component. The effect of a leakage wall indicated that it can be applied to design of spiral casing for providing good performance and lower loss in a Francis hydro turbine.

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      UCI(KEPA) : I410-ECN-0101-2018-554-001773293