体相微纳米尺度泡状流预混合燃料的喷雾特性研究
Study on spray characteristics of bulk micro-nano bubble flow premixed fuel
针对发动机燃用石化燃料喷雾过程中在有限时间和空间内实现高质量油-气混合的要求,提出了基于液相空间制备预混的纳米尺度泡状流预混合燃料(目标燃料)的方法,研究了其喷雾特性并与常规柴油进行了对比。体相微纳米气泡的加入减小了喷雾贯穿距离,但对喷雾径向扩散具有促进作用,从而使燃料的喷雾锥角、最大喷雾宽度和喷雾面积均有所增加并随气泡浓度的增加增益效果进一步增强。当环境背压和喷射压力增大时,体相微纳米气泡带来的优化效果逐渐减弱,使得泡状流预混合燃料与常规柴油之…查看全部>>
For the requirement of high-quality oil-air mixing in limited time and space during the spray process of engine combustion,a preparation method of premixed micro-nano bubble flow mixed fuel(target fuel)is proposed.And the spray characteristics of the target fuel are investigated and compared with traditional diesel.The results showed that the incorporation of bulk phase micro-nano bubbles reduces the tip penetration of fuel spray and promotes the spray radia…查看全部>>
宣熔;郭亮;李德刚;蔡宁宁;程鹏;孙万臣;陈艳玲;王涵;张峻峰;
TK427
micro-nano bubbles bubble flow fuel spray characteristics
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