| Title |
The Convective Heat Transfer for the Flow Perpendicular to the Tube Array |
| Keywords |
Convective heat transfer ; 대류 열전달 ; Aligned arrangement ; 정렬배열 ; Staggered arrangement ; 엇갈림배열 ; Heat transfer coefficient ; 열전달계수 ; Heat flux ; 열유속 |
| Abstract |
The convective heat transfer on the outer surface of tube arrays perpendicular to the flow direction was experimentally investigated. The test sections which include the aligned and staggered arrangements were made and the local heat transfer coefficients on the outer surface of the tube were measured after the flow has been fully developed. The results showed that the local heat transfer coefficients of the staggered arrangement, which has transverse pitch of 0.075m and longitudinal pitch of 0.08m, were about 15% greater than that of the aligned arrangement. Also, the overall mean Nusselt number of the former was greater than that of the latter. It is verified that the results obtained by using the simulation show the same tendency with those of experiment. |