く形流路内温度助走区間における乱れ促進体挿入による強制対流伝熱促進

概要

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A numerical and an experimental study was carried out to investigate the enhancement of heat transfer within a thermally developing region, by placing a square rod in the vicinity of the lower channel wall. A numerical analysis based on SIMPLE reveals the details of the complex unsteady flow pattern and the corresponding distribution of mass transfer rate. Exhaustive local mass transfer measurements were made using a naphthalene sublimation technique, varying the distance between the square rod and lower channel wall for the Reynolds numbers ranging from 8.27×10^3 to 2.205×10^4. Performance evaluation based on equal pumping power showed substantial augmentation of heat transfer in a thermally developing region upon placing a square rod close to the wall with an orientation angle of 60°.
一般社団法人日本機械学会の論文
1994-06-25