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An ionized gas particle created by the spark discharge between electrodes has a density different from that of the surrounding gas. This difference of densities causes errors in measuring velocity whe...n the spark tracer method is applied to an accelerated flow induced by a shock wave, because the ionized gas particle is much more accelerated than the surrounding gas by the interaction of the shock wave. In this study the interaction phenomena of a shock wave with an ionized gas column generated by the spark tracer method have been experimentally investigated using a shock tube. The configuration of the ionized gas column after the interaction varies with time and it has been classified into five patterns. The velocity of the ionized gas column is much faster than that of the surrounding gas just after the interaction and it decreases asymptotically with time. The asymptotic value is about 1.14 times that of the surrounding gas. Furthermore, assuming a simple flow model, the variation of velocity of the ionized gas column after the interaction with the shock wave has been calculated. The results qualitatively agree well with the experimental values.続きを見る
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Mendeley出力
