2411 ノズル内キャビテーションに関する現象論的モデル化手法の提案(G07-1 エンジンシステム(1),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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It is well-known that flow condition inside injection nozzles has much effect on spray characteristics. Despite its importance, the two-phase gas-liquid flow is difficult to be simulated by using computational fluid dynamics due to the existence of cavitation which involves small-scale and high-speed phase-change phenomena. To resolve this problem and to link between flow condition including the effect of cavitation and spray characteristics, the authors have developed a phenomenological modeling scheme. This paper proposes novel modeling schemes which make it possible to realize high-accuracy computations of growth and shrinkage processes of cavitation bubbles.
社団法人日本機械学会の論文
2008-08-02