인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In this study, various fractal grids are used to investigate the non-reacting turbulent flow characteristics of a circular fractal turbulence generator. The types of fractal grids used as turbulence generators are cross and square, and a total of 24 grids produced by changing the shape parameters are investigated. Also, to compare the characteristics of turbulent flow, a general perforated plate with the same blockage ratio is used together. In the center axis turbulence component results, the two types of fractal grids show different turbulence component tendency depending on their shape parameters, and are investigated individually. As a result of quantitatively confirming the difference in turbulence intensity using the percentage difference method, the two types of fractal grids produced stronger turbulence than the conventional grids (perforated plate and mesh). The results of (r, z) plane measurements show that the shape of the turbulent generator significantly affects the turbulent component after nozzle exit. The inhomogeneity of the turbulence component was more severe in the square grid than in the cross and conventional grids, but as the blockage ratio of the square grid increased, the homogeneity of the turbulence component showed a tendency to improve.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-ECN-0101-2021-431-001855571