日本機械学会関東支部総会講演会講演論文集
Online ISSN : 2424-2691
ISSN-L : 2424-2691
セッションID: 21424
会議情報
21424 急減圧下における高粘性流体の気泡生成・成長に関する研究(複雑流の計測,OS.4 流れの計測と制御)
藤井 仁志阿部 豊若林 信行
著者情報
会議録・要旨集 フリー

詳細
抄録
The volcanic eruption occurs due to the sudden decompression of the high-pressure high temperature high viscosity magma. It is mainly depended on the appearance of the gas phase in the magma whether it is an explosive eruption or not In the present study, the volcanic eruption is reproduced with the high-pressure visible shock tube apparatus and simulant materials. The simulant materials for the magma are two-fluid component of silicone oil as high viscosity fluid and acetone as volatile substance. In the experiment, the bubble forming behavior of the simulant materials and the rapid change in pressure is observed. Bubble forming behavior had completed in very short span and then bubbles developed. The number of bubbles that generated under sudden decompression increased as the initial pressure increased. It is indicated from the experimental results that the driving force of bubble forming under sudden decompression depends on the initial pressure.
著者関連情報
© 2007 一般社団法人 日本機械学会
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