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김재은(Jaeeun Kim),최정열(Jeong-Yeol Choi) 한국추진공학회 2022 한국추진공학회 학술대회논문집 Vol.2022 No.5
스크램제트 비행체에 향후 개발할 초내열합금 적용과 재생냉각시스템에 활용하기 위한 복합열전달해석 솔버 개발의 일환으로, 고속비행환경의 스크램제트엔진 흡입구~격리부의 내부유동을 전산해석 하였다. 2차원 압축성 RANS 지배방정식에 k-ω SST 난류모델을 사용하였으며, 축등온 벽면 온도를 추정하여 경계조건을 부과한 후 대류열유속과 온도분포를 도출하고 검토하였다. 전산해석 결과 재생냉각을 가정한 경사면 위의 박리기포에서 가장 높은 열전달계수와 열유속을 확인할 수 있었다. As part of the development of a CHT solver for the application of super-alloy to be developed in the future to the scramjet vehicle and for use in the regenerative cooling system, a computational analysis of the internal flow of the scramjet engine inlet and isolation part in a high-speed flight environment was performed. The k-ω SST turbulence model was used in the two-dimensional compressible RANS governing equation, and the convective heat flux and temperature distribution were computed and reviewed after boundary conditions were imposed by estimating the axial constant wall temperature. As a result of the computational analysis, it was possible to confirm the highest heat transfer coefficient and heat flux in the separation bubble on the ramp, assuming regenerative cooling.
김재은 ( Jaeeun Kim ) 상명대학교 글로벌문화예술교육연구소 2020 문화예술융합연구 Vol.1 No.2
The military should contribute to boosting morale by preparing policies that can satisfy various cultural needs of military personnel, laying the foundation for individual emotional cultivation and self-development. Through the current status and examples of cultural and artistic projects carried out in the county so far, this study attempts to present marketing strategies that can win and win between the military and the culture and arts community and ways to meet the new cultural needs of military personnel. Also, I would like to propose measures to promote culture and arts that can be used as a means of stimulating emotions. Military culture and arts education also has an indirect impact on the development of military welfare, and the culture and arts community can expect the securing of numerous potential customers and the revitalization of culture and arts. The soldiers who participated in the culture and arts program also saw a increase in individual sensitivity, improved relations with colleagues and superiors, and reduced stress on military life. As such, the military's culture and arts education is required to move away from the past form and lead to those who can adapt to military life and enjoy culture and arts after being discharged from the military.