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논문 기본 정보

자료유형
학술저널
저자정보
Eun-Pil Kim (Pukyong National University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제43권 제8호
발행연도
2019.10
수록면
599 - 604 (6page)
DOI
10.5916/jkosme.2019.43.8.599

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초록· 키워드

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The heat transfer characteristics were investigated in a vertical minichannel with two grooves. The wall geometry of the minichannel possessed grooves with several modified groove ratios. To determine the effects of natural convective heat transfer, the finite volume numerical method was used. The results showed that when d/D = 0.1 and d/D = 0.25, there was no flow separation. When d/D = 0.4, however, there was flow separations at both walls. For the left wall, the local Nusselt number decreased dramatically starting at the leading edge. For the case of two grooves, there were four flow separations at d/D = 0.5. The heat transfer patterns were similar to the single-groove case. However, at the end-section of the first groove, the temperatures dispersed downstream. These heat transfer characteristics corresponded to the flow field. When there was a 1-mm distance between the grooves, the Nusselt number showed a larger variation compared to the other cases. When the channel pitch was 3 mm, the distance between the grooves was not a large factor after a 2-mm groove distance was reached.

목차

Abstract
1. Introduction
2. Mathematical Modeling
3. Results and discussion
4. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2019-559-001328375