Dynamic evolution of low-viscosity fuel particle distribution driven by constant flow
作者机构：School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210000China Institute of Systems EngineeringAMSPLABeijing 100000China
出 版 物：《Chinese Physics B》 (中国物理B（英文版）)
年 卷 期：2023年第32卷第7期
页 面：416-427页
核心收录：
学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理]
主 题：low-viscosity fuel spray and atomization particle distribution laser diffraction
摘 要：The effects of mass concentration and injection pressure on the atomization characteristics of low-viscosity fuel spray are studied in a constant-volume *** spray parameters are measured by laser diffraction at different axial and radial positions downstream of the *** results show that the atomization effect is inhibited linearly with the increase of mass *** increase of injection pressure promotes the droplet ***,the trend gradually weakens and becomes more noticeable at high *** with the concentration,the influence of the injection pressure on the atomization characteristics is *** low concentration and high injection pressure can promote the droplet breakup,they also increase the probability of droplet collision,resulting in droplet *** is more evident in low-viscosity *** droplet size increases in the axial direction owing to the ***,the diameter decreases in the radial direction owing to the outward deflection of small droplets caused by air turbulence and *** addition,the high-velocity airflow significantly promotes the droplet breakup near the nozzle and spray axis regions and inhibits the aggregation ***,the lower-viscosity fuels keep smaller droplet sizes and better atomization in the whole spraying process,which is easier to realize than the higher-viscosity ***,low concentration,high injection pressure,and low viscosity of fuel have beneficial effects on the droplet *** is very important for improving the atomization effect of fuel.
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