1558 平行におかれた2円管から流出する噴流(G05-7 噴流(2),G05 流体工学)

概要

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The jet flow issuing from two parallel pipes is encountered in various cases in industry. As a part of this flow field, the characteristics of the jet flow added the pulsation have been investigated, using the PIV analysis and the LIF method. In this study, the pulsating frequency was varied from 0 to 4Hz and the Reynolds' number changed 1.0×10^4, 0.5×10^4 and 0.3×10^4. As a result, it has been found from the flow visualization that the jet diffusion becomes large in adding pulsation. The half value width of the jet in xOz plane becomes large with the increase of the pulsating frequency. Furthermore, in the case of the Reynolds' number of 0.5×10^4, it has been also clarified that the jet is promoted largely for 3 and 4Hz, comparing with those in other cases.
社団法人日本機械学会の論文
2007-09-07