管内を伝ぱする衝撃波の閉口端からの放射 : (フランジ直径がパルス波の強さに及ぼす影響)

概要

論文の詳細を見る
When a shock wave propagates along a constant-area straight tube and reaches open end, an impulsive wave is emitted outward from the tube exit toward the surrounding area. In order to clarify the effects of diameter of a flange at the tube exit, experimental and numerical investigations have been carried out. A simple open-ended shock tube with the flange of the various diameter at the tube exit was used. The magnitude of an impulsive wave, the attenuation with distance and its directivity are discussed with the experimental results. As the results, the effect of the diameter of flange on the magnitude of an impulsive wave was shown. Finally, the effective equations concern with the magnitude of an impulsive wave generated by the emission of a shock wave were obtained from the numerical results solved by the TVD scheme.
一般社団法人日本機械学会の論文
1999-05-25