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ROS2 를 활용한 AI & ICT 기반 자율주행 공기청정기 연구
오현준 ( Hyoun-jun Oh ),하은지 ( Eun-ji Ha ),김기흥 ( Gi-heung Kim ),이경용 ( Kyung-yong Lee ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2
공기질에 대한 인식이 제고됨에 따라 실내공기질 규제가 강화되고 있다. 따라서 기존 고정형 공기청정기를 대체할 효율적인 기술로 자율주행 공기청정기를 연구하였다. 또한 자율주행 공기청정기에 AI 를 적용하여 오염도를 예측하는 방법으로 기존 자율주행 공기청정기와 차별성을 둔다.
2-次元 表層密度流場에 대한 代數應力모델(ASM)의 適用(Ⅰ)
金基興,咸契運 慶尙大學校生産技術硏究所 1993 生産技術硏究所論文集 Vol.9 No.-
Solving buoyant surface jet, the most improtant problem is the expression of turbulent transport. In this study, disadvantages of k-εmodel which has been applying to predict the turbulent transpor in buoyant surface jet are considered. And then algebraic stress model equations contained the production/destruction of turbulent energy by the influence of free surface and the buoyant effect in stratified flows are derivated. As the result of this study, algebraic stress model equations express the transport by turbulent components exactly.
2次元-表層密度流場의 解析에 있어서 境界層近似 適合性 檢討 : K-ε모델의 경우 with k-ε Model
金基興,咸契運,朴浚一 慶尙大學校生産技術硏究所 1995 生産技術硏究所論文集 Vol.11 No.-
Solving buoyant surface jet, the most important problem is the expression of turbulent transport. In this study, the compatibility of boundary layer approximation of k-ε model which has been applying to predict the turbulent transport in buoyant surface jet are considered. The results which has been comparing the computations of boundary layer approximation equations and full equation with experiments showed. As the result of this study, the hypothesis of boundary layer approximation does not express the transport by mean buoyancy in buoyant surface jet exactly, the hypothesis of boundary layer approximation is not valid for simulation of buoyant surface jet with k-ε model.