B-17 非混和性二流体中の加振噴流不安定性に伴う液滴生成過程の数値解析(燃焼・燃焼器III,一般講演)

概要

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Although pinch off has been subjected to numerous studies for more than 100 years, detailed structure inside liquid jet is still unknown because it is associated with very small length and time scales. In the present study, three dimensional unsteady simulation of pinch off in immiscible liquid/liquid jet systems was conducted for understanding the jet structure. Numerical results were compared qualitatively and quantitatively with the experiment made by Longmire et al. Jet disintegration was properly captured in this simulation. The disintegration was observed to occur at the fluid element which emerged from the nozzle with the minimum acceleration. The interfacial tension was revealed to have important effect on the generation mechanism of the jet structure.
公益社団法人日本ガスタービン学会の論文
2006-10-01