常温以下の気体中の衝撃波特性と凝縮現象 : 第1報,低温実験用無隔膜衝撃波管の開発

概要

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Shock tube facilities for low temperature gas have been developed by combining the non-diaphragm shock tube with cooling by liquid nitrogen, and with data processing by microcomputer. The developed shock tube is free pollution by broken diaphragm or freezing influx of atmosphere. Using N_2, R-12, and O_2 as test gases measurements are performed for initial pressures, temperature, velocities of incident and reflected shock waves, and pressure changes. Minimum temperature of test gas of initial condition ranges to 161 K (-112℃) for O_2. Among the measured results, shock waves in R-12 show real gas effect especially and strong condensation phenomena behind the waves are observed near saturation conditions of low temperature.
社団法人日本機械学会の論文
1985-02-25