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Space Filling Square Fractal 격자에서 발달된 저선희 난류 화염의 유동 및 연소 특성 연구
강연세(Yonse Kang),모재완(Jae Won Mo),이기만(Kee Man Lee) 한국연소학회 2021 KOSCOSYMPOSIUM논문집 Vol.2021 No.11
The turbulent flow generated by applying the space-filling square fractal grid to the shape of the central turbulence generating plate, which plays a key role in forming the lifted flame of the low swirl injector, was observed in the non-reacting and reacting flow fields. Through the study of the non-reacting flow field, the turbulent mean velocity profile before and after the nozzle was investigated and it was observed that the characteristic of divergent flow without an inner recirculation region was observed. Furthermore, the development and dissipation region of turbulent energy induced by the fractal grids were classified through the turbulent intensity, which is expected to generate various interactions between the turbulent flow and the turbulent flame front in the lifted flame configuration.