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This study is to analyze the local convective heat transfer for a circular cylinder with annular fins. The relation between wall heat transfer and three-dimensional flow is investigated for different distances of annular fins. Depending on the fin spacing, the flow structure is strongly changed by the variation of horseshoe vortices. As the fin spacing increases, the heat transfer rate is maximized at a certain condition. This is clearly obtained as the Reynolds number increases, and it is closely related to the development of horseshoe vortices.
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References
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - Giordano, R. / 2011 / Flow field and heat transfer on the base surface of a finite circular cylinder in crossflow / Applied Thermal Engineering 49 : 1 ~ 10
2. [학술지(정기간행물)] - Sung, H.J / 1993 / Local convective mass transfer on circular cylinder with transverse annular fins in crossflow / Int. J. Heat and Mass Transfer 39 : 1093 ~ 1101
3. [학술지(정기간행물)] - Romero-Mendez, R. / 2000 / Effect of fin spacing on convection in a plate fin and tube heat exchanger / Int. J. Heat and Mass Transfer 43 : 39 ~ 51
4. [학술대회논문] - Sanhaji M. / 2006 / Infrared thermography study of the local heat transfer coefficient in front of a single finned tube / 8th Int. Conference on Quantitative InfraRed Thermography : N12 ~
5. [학술지(정기간행물)] - Sheui, W.H. / 1999 / Numerical study of heat transfer in two-row heat exchangers having extended fin surfaces / Numerical Heat Transfer, Part A 35 : 797 ~ 814
2. [학술지(정기간행물)] - Sung, H.J / 1993 / Local convective mass transfer on circular cylinder with transverse annular fins in crossflow / Int. J. Heat and Mass Transfer 39 : 1093 ~ 1101
3. [학술지(정기간행물)] - Romero-Mendez, R. / 2000 / Effect of fin spacing on convection in a plate fin and tube heat exchanger / Int. J. Heat and Mass Transfer 43 : 39 ~ 51
4. [학술대회논문] - Sanhaji M. / 2006 / Infrared thermography study of the local heat transfer coefficient in front of a single finned tube / 8th Int. Conference on Quantitative InfraRed Thermography : N12 ~
5. [학술지(정기간행물)] - Sheui, W.H. / 1999 / Numerical study of heat transfer in two-row heat exchangers having extended fin surfaces / Numerical Heat Transfer, Part A 35 : 797 ~ 814
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