인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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.
피인용 0
초록·키워드
The studied oil cooler consists of 14 wave-patterned oil channels, resulting in a complex internal geometry. It is necessary to examine the internal flow characteristics that could directly affect the performance of the oil cooler. In this study, the internal flow characteristics such as velocity, flow distribution, pressure drop, and recirculation zones within the oil cooler were analyzed using the ANSYS FLUENT solver. Mesh convergence study was successfully conducted by comparing the results of analyses with grid sizes 2.2 times, 1.42 times, and 1 times mesh. The analysis results of two turbulence models, Realizable k-𝜀 and SST k-ω, were compared, and the SST k-ω model was found to be more suitable. Recirculation phenomena near the walls, inlet, and outlet were observed. Initially, oil was slightly concentrated in the 4th channel of the 1<sup>st</sup> pass, but it was evenly distributed into all channels from the 2<sup>nd</sup> pass onward. At the oil path 1<sup>st</sup> inlet, non-uniform velocity distribution due to impingement, recirculation, and transition was observed. The largest pressure drop occurred when passing through the 1<sup>st</sup> pass and 2<sup>nd</sup> pass, with each causing a pressure decrease of 0.85% relative to the oil inlet pressure. The oil outlet pressure was 2.3% lower than the oil inlet pressure.
본문·목차
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