CAJ | 학술논문

本文以空气为介质，对四组百页窗式翅片通道的传热特性和流动阻力进行了试验研究。四组试验件的几何尺寸相同，只是翅片上百页窗的开窗段不同，分别是3 mm、6.5 mm、前3 mm后6.5 mm及各组开窗段间距交替为3 mm与6.5 mm。传热试验得出的四种试验通道Nu Re关系相同，而阻力则以开窗段间距3 mm的为最低
본문이공기위개질，대사조백혈창식시편통도적전열특성화류동조력진행료시험연구。사조시험건적궤하척촌상동，지시시편상백혈창적개창단불동，분별시3 mm、6.5 mm、전3 mm후6.5 mm급각조개창단간거교체위3 mm여6.5 mm。전열시험득출적사충시험통도Nu Re관계상동，이조력칙이개창단간거3 mm적위최저
The heat transfer and flow friction characteristics of four kinds of louveredfin channels. Were investigated experimentally in this paper. The geometricstructures, except for the louver pitches, of these four louvered fin channelsare the same and the air is as the testing medium in this experiment. The testresult shows that: these four kinds of louvered fins' Nu Re relationshipis basically similar with each other, While the channel with the minimumpressure drop is the one whose louver pitch is 3 mm