| Title |
A Study on Heat Transfer Enhancement from Flat Plate Using Multiple Tripping Wires |
| Authors |
유성연(Seong-Yeon Yoo) ; 조웅선(Woong-Sun Cho) ; 안종규(Jong-Kyu Ahn) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2012.24.12.837 |
| Keywords |
평판 ; 열전달 촉진 ; 트리핑 와이어 ; 나프탈렌승화법 Flat plate ; Heat transfer enhancement ; Tripping wire ; Naphthalene sublimation technique |
| Abstract |
The purpose of this research is to investigate the heat transfer enhancement by the multiple tripping wires installed on a flat plate. Naphthalene sublimation technique is used to measure the local mass transfer coefficients, and then heat transfer coefficients are calculated using heat/mass transfer analogy. Experiments are performed for the developed and developing flow conditions. Local and average heat transfer coefficients from the flat plate with three tripping wires are compared with those of no and one tripping wire. Remarkable heat transfer enhancements are found resulting from the boundary layer separation by the tripping wires, especially in the laminar boundary layer. |