621 複数ノズルによる非等温二次元衝突噴流の熱伝達特性(GS-6・9 強制対流熱伝達)

概要

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Heat transfer characteristics of non-isothermal two-dimensional impinging hot air jet were investigated experimentally with multiple nozzles. Average and local heat transfer coefficients between an impingement plate and two-dimensional impinging hot air jet were measured by using thermocouples mounted in a heat transfer block. The parameters studied were nozzle-to-impingement plate distance (H/B=2,4,6,8,10), jet velocity (U_J=11m/s,22 m/s,28m/s), and jet temperature (t_j=50℃,100℃,150℃). From the results, it was found that influences both of jet velocities and jet temperatures on local Nusselt numbers. Also it was cleared that the high heat transfer coefficients were kept in case of multiple nozzles than that of single nozzle.
一般社団法人日本機械学会の論文
2001-03-16