239 液滴と固体の衝突現象の数値解析(S41-1 移動境界・連成(1),S41 移動境界・連成・振動と騒音問題)

概要

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A coupled numerical simulation of gas-liquid two-phase fluid and structure was carried out in order to clarify the erosion mechanism caused by the impact of high-speed droplet Trie present method, which combines a gas-liquid two-phase flow analysis method using local homogeneous model and an elastic wave analysis method based on elastodynamics, was developed. Since the present method for elastodynamics is based on a compressible fluid analysis technique, it is seemed to be appropriate the fluid structure interaction (FSI) problems. In this study, the numerical simulation about a high-speed droplet impacts on the mild-steel surface was carried out. As a result the maximum von Mises equivalent stress is obtained about 380MPa in solid material after droplet impact, and it is indicated that the present method can behavior the yielding behavior.
一般社団法人日本機械学会の論文
2005-09-18