F-1513 滑らかな平面楔上におけるマッハ反射の非自己相似性(S55-1 高温/高速現象と可視化(1))(S55 高速/高温現象と可視化)

概要

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In order to investigate a later stage of Mach reflection and to check the non-selfsimilar and unsteady behavior, we performed experiments in a shock tube with a cross-section of 185 mm square in Karlsruhe University. The reflection configuration was visualized by means of the infinite fringe spacing interferometry, which is similar to the Schlieren method. The angle between incident and reflected waves were measured as well as the location of triple point. The results showed that these physical properties vary as the incident shock proceeds even in the later stage of shock reflection. For some case, the angles of incidence and reflection, which exhibited the so-called von Neumann paradox at an early stage, moved on the three-shock theory curve to resolve the paradox. For other cases, they varied toward the three-shock theory curve but the paradox was yet to be resolved.
社団法人日本機械学会の論文
2001-08-22