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논문 기본 정보

저자정보
(한국생산기술연구원) (국방과학연구소) (한국생산기술연구원) (한국생산기술연구원) (한양대학교) (한국생산기술연구원)
저널정보
한국유체기계학회 한국유체기계학회 학술대회 논문집 2023년 한국유체기계학회 동계학술대회
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    초록·키워드

    In this study, a numerical analysis was performed by assigning an absolute flow angle to the pump inlet to predict the rotational flow of the variable inlet guide vane trailing edge. The effect of the absolute flow angle of the pump inlet on the slope of the performance curve and the unstable flow phenomenon at the low flow rate was analyzed. Further, the finite volume method based on the three-dimensional Reynolds-averaged Navier-Stokes equations was employed to discretize the governing equations. It was confirmed from the results of the internal flow field analysis that and unstable flow phenomenon occurred regardless of the change in the flow angle of the pump inlet. As the inlet flow angle increased from 0° to 45°, it was confirmed through the analysis of the fast fourier transformation results that the pump could be operated stably in the low flow rate compared to 0°.

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