密閉空間内自然対流の振動現象 : 第3報 : 短形断面内編心線熱源の場合 : 熱工学 , 内燃機関 , 動力など

概要

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An experimental study was carried out to investigate the natural convective oscillatory flow of air caused by a line heat source placed eccentrically along the axis of a horizontal rectangular chamber. The frequency of the oscillatory flow and the initial condition under which the oscillation commences were compared with the previous investigation for the concentric axis. It was found that the generalized equations of non-dimensional frequency of the oscillatory flow for the concentric axis are applicable to the eccentric case. The visualization of the flow showed that there are two typical oscillatory flow patterns which result in the existence of two generalized equations of non-dimensional frequency. The transition of oscillatory flow pattern is dominated by the aspect ratio of the upper space of the heat source and the expansion number.
社団法人日本機械学会の論文
2001-02-25