- 마이크로 표면주름 형상에 따른 열전달 촉진효과 기초연구
- ㆍ 저자명
- 박희진,박상후,Park. Hee-Jin,Park. Sang-Hu
- ㆍ 간행물명
- 설비공학논문집
- ㆍ 권/호정보
- 2014년|26권 9호|pp.447-452 (6 pages)
- ㆍ 발행정보
- 대한설비공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
We evaluated heat transfer characteristics of microscale wrinkles using a CFD (computational fluid dynamics) analysis. In order to verify the heat transfer effect of wrinkles having various shapes, we introduce wrinkling processes to generate few different shapes of wrinkles such as macroscale ($200{sim}400{mu}m$ width), microscale ($10{sim}30{mu}m$ width), and hierarchical (microscale on macroscale wrinkle) wrinkles, using repetitive-dividing-volume (RDV) method for single-shape of wrinkles and connected method of UV-weakly polymerization with thermal curing for hierarchical structure of winkles. The analysis results of simplified CFD model showed that heat flux on heated plate was changed by the shape of wrinkles on the plate. The increase in heat flux of about 2.6 times was achieved in the case where hierarchical wrinkle structure was used.