液-液噴射法の乳化像を用いた模型実験による直噴ディーゼル機関の噴口角度選定

概要

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In order to clarify characteristics of fuel-air mixing process, a visual observation was made on a relative simulation of spray behavior involving a liquid media generated forced or combined swirling flow and a gas media of adiabatic compressed air. A liquid fuel was injected into another liquid to simulate the process of diffusion in a plastic piston cavity that simulated an actual engine. The cavity was filled with water and rotated to generate the forced or combined swirling water flow. The simple simulation theory concerning the liquid-liquid injection was proved. Results suggest that the adequate correlation between the analysis of spray formation, viewed from the bottom and the side, and the specific fuel consumption of actual engine was clarified on various hole angles. The liquid-liquid injection technique is markedly useful for evaluating the performance of actual engines.
久留米工業大学の論文
1998-12-20