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딤플을 가진 두 평판 핀 사이의 유동 및 열전달에 대한 수치적 해석
도규회(Kyu-Hoi Do),이영우(Young-Woo Lee),김수연(Soo-Youn Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
In present study, the effect of dimples on the flow and the heat transfer between two plate-fins with dimples was numerically analyzed with Reynolds numbers from 150 to 2000. The dimples were applied to extend the fin surface area and to promote turbulent flow around plate-fins. The relatively strong vortices were generated in dimples and it enhanced heat transfer of plate-fins.
딤플을 가진 두 평판 핀 사이의 유동에 대한 수치적 해석
도규회(Kyu-Hoi Do),이영우(Young-Woo Lee),신석원(Seok Won Shin),김수연(Soo-Youn Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
In present study, the effect of dimples on the flow between two plate-fins with dimples was numerically analyzed with Reynolds numbers from 150 to 2000. The dimples were applied to extend the fin surface area and to promote turbulent flow around plate-fins. The relatively strong vortices were generated in dimples and it will enhance heat transfer of plate-fins.
낮은 레이놀즈 영역에서의 딤플을 가진 평판 핀 사이의 유동에 대한 수치적 해석
도규회 ( Kyu Hoi Do ),신석원 ( Seok Won Shin ) 조선대학교 공학기술연구원 2009 공학기술논문지 Vol.2 No.4
In present study, the effect of dimples on the flow between two plate-fins with dimples was numerically analyzed with Reynolds numbers from 150 to 2000. The dimples were applied to extend the fin surface area and to promote turbulent flow around plate-fins. The relatively strong vortices were generated in dimples and it will enhance heat transfer of plate-fins.
딤플을 가진 두 평판 핀 사이에서 딤플의 형상에 따른 유동 및 열전달에 대한 수치적 해석
도규회(Kyu-Hoi Do),김수연(Soo-Youn Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.5
In present study, the effect of dimple shapes on the flow and the heat transfer of between two dimple plate-fins were numerically analyzed. The dimples were applied to extend the fin surface area and to promote turbulent flow near the plate-fin. The ratio of the depth (d) to the diameter (D) of dimples is one of important parameters, which affect flow and heat transfer as geometric variables. As simulation results, the case with ratio d/D of near 0.24 was worst on average Nusselt numbers within test range from 0 to 0.4.