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논문 기본 정보

저자정보
(과학기술연합대학원대학교) (한국생산기술연구원) (삼원이앤비) (과학기술연합대학원대학교)
저널정보
한국유체기계학회 한국유체기계학회 논문집 한국유체기계학회 논문집 제22권 제4호(통권 제115호)
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    초록·키워드

    In this study, the performance and internal flow characteristics of an axial fan were investigated based on the geometrical parameters of an inlet hub cap using the definition of the hub cap ratio. By considering the shape of the hub cap as a geometrical parameter, the hub cap ratio was defined as the ratio of the radius to the axial distance of the hub cap, and 8 cases were selected to compare the effects of the hub cap. A three-dimensional steady Reynolds-averaged Navier–Stokes (RANS) calculation was conducted using a shear stress transport turbulence model to observe the effects of the hub cap shape based on the internal flow and performance characteristics of the axial fan. Further, the streamline and pressure distribution were investigated based on the geometrical parameters of the hub cap. The hub cap shape affects the pressure difference by separating the flow in the vicinity of the impeller hub on the basis of the hub cap ratio. An appropriate hub cap shape reduces the separated flow and denotes a relatively higher performance.

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      UCI(KEPA) : I410-ECN-0101-2019-554-000936087