대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2008년도 추계학술대회B
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- Pages.2029-2032
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- 2008
델타윙에 의한 이차유동이 딤플의 열/물질전달 특성에 미치는 영향에 대한 연구
Investigation of heat/mass transfer coefficients in a dimple with upstream rectangular winglet pair
- 발행 : 2008.11.05
초록
In this study, we have investigated the effects of upstream rectangular winglet pair (RWP) on the heat/mass transfer coefficients in a dimple. Dimple print diameter was fixed at 20mm and the dimple depth was 4.0mm (0.4H). The dimple surface was coated with naphthalene for mass transfer experiment and the test plate was positioned at a rectangular straight duct whose aspect ratio (W/H) was 20. A rectangular winglet pair was positioned at y/d=-2.5. The RWP angle (