流れの閉そく過程で発生する調節衝撃波の数値解析

概要

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In this paper, two kinds of choking processes of flows were numerically investigated. One is the choking process of the flow generated by the shock wave passing over the wedge in a shock tube, and the other is the choking process of the uniform flow produced by sudden reduction of cross-sectional area in a duct. The computations were carried out by solving the two-dimensional Euler-type equations by means of the TVD method. The numerical results agree well with experimental results of the choking process in a shock tube, and clarify the developing process of the sonic line and the effects of choking on the shape and the behavior of the adjusting shock wave produced in the choking process. This shows that the reflected shock wave from the wedge in a shock tube and the shock wave generated at the thoat in the uniform flow develop into adjusting shock wave in the choking process.
社団法人日本機械学会の論文
1992-04-25