نویسندگان
1 دانشگاه صنعتی بابل
2 دانشگاه سمنان
3 دانشگاه صنعتی امیرکبیر
چکیده
کلیدواژهها
عنوان مقاله [English]
The idea of using porous media in internal combustion engines is developed to achieve charge homogenization in recent decade. In this paper, the macroscopic characteristics of high pressure diesel spray has been studied in interaction with porous media. Spray penetration length has been obtained numerically in both free spray and porous media (PM) presence in a constant volume chamber under different ambient pressure conditions. Four empirical correlations in the literature has been compared to predict the spray pressure drop through the PM and obtained the viscous and inertia loss coefficients in the Forchheimer equation and then the most accurate correlation will be introduced based on the experimental results. The numerical results predict correctly the length of the spray penetration after passing through porous media. Although these correlations were developed for water in low Reynolds flows but the result indicates that the correlations can be used in high Reynolds streams and expanded scope of its applications.
کلیدواژهها [English]
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